diff --git a/aoc2020.ml b/aoc2020.ml
index b2b54b5..b241b76 100644
--- a/aoc2020.ml
+++ b/aoc2020.ml
@@ -2,7 +2,7 @@ open Aoc2020
 
 let days =
   [|Day1.main; Day2.main; Day3.main; Day4.main; Day5.main;
-    Day6.main|]
+    Day6.main; Day7.main|]
 
 let _ =
   match Array.to_list Sys.argv with
diff --git a/data/day7 b/data/day7
new file mode 100644
index 0000000..1390fba
--- /dev/null
+++ b/data/day7
@@ -0,0 +1,594 @@
+mirrored gold bags contain 3 light teal bags.
+clear gold bags contain 5 light maroon bags, 4 pale tomato bags, 5 clear blue bags.
+dark olive bags contain 5 plaid black bags, 2 dim plum bags, 2 light cyan bags.
+bright white bags contain 2 pale violet bags, 5 mirrored orange bags, 3 faded beige bags.
+posh green bags contain 4 shiny gray bags.
+posh lime bags contain 3 muted lavender bags, 1 clear magenta bag, 5 muted orange bags, 3 mirrored cyan bags.
+striped turquoise bags contain 3 pale red bags, 4 wavy lime bags, 4 wavy aqua bags.
+pale fuchsia bags contain 1 striped purple bag.
+dark magenta bags contain 4 light indigo bags, 1 wavy lavender bag, 1 clear teal bag.
+drab teal bags contain 5 pale bronze bags.
+muted aqua bags contain 4 wavy bronze bags, 1 pale plum bag.
+vibrant brown bags contain 4 dull turquoise bags.
+vibrant green bags contain 5 dim violet bags, 2 dotted red bags, 2 dull indigo bags.
+wavy black bags contain 3 posh yellow bags, 5 wavy coral bags.
+light fuchsia bags contain 1 dull violet bag, 5 dim indigo bags, 4 plaid red bags, 5 dotted bronze bags.
+drab bronze bags contain 5 dim tan bags, 4 mirrored yellow bags, 5 dim indigo bags.
+plaid silver bags contain 4 pale orange bags.
+wavy red bags contain 3 muted chartreuse bags, 4 light silver bags.
+light aqua bags contain 4 dark cyan bags, 3 shiny aqua bags, 1 light olive bag, 3 wavy purple bags.
+wavy salmon bags contain 1 shiny blue bag, 2 bright green bags, 5 dark beige bags.
+vibrant indigo bags contain 4 drab lime bags, 5 plaid turquoise bags.
+striped violet bags contain 3 dim violet bags, 3 striped purple bags.
+dull salmon bags contain 5 vibrant turquoise bags, 5 muted black bags.
+dark lavender bags contain 5 pale gold bags, 5 pale silver bags.
+clear lavender bags contain 1 faded turquoise bag.
+striped crimson bags contain 2 dull turquoise bags, 1 dotted red bag, 5 striped yellow bags.
+posh chartreuse bags contain 2 wavy lavender bags, 2 striped black bags, 5 dim blue bags, 5 bright fuchsia bags.
+clear tomato bags contain 1 mirrored violet bag, 4 pale gold bags, 5 bright bronze bags.
+clear brown bags contain 3 plaid fuchsia bags.
+pale aqua bags contain 3 pale indigo bags, 1 dark lime bag, 4 dim magenta bags.
+bright maroon bags contain 4 wavy yellow bags, 4 bright tan bags, 2 posh indigo bags, 4 shiny white bags.
+wavy purple bags contain 1 faded beige bag, 2 drab salmon bags, 3 mirrored yellow bags.
+muted salmon bags contain 5 bright olive bags, 2 striped white bags, 3 dotted coral bags.
+dotted maroon bags contain 4 striped brown bags.
+wavy turquoise bags contain 1 dim indigo bag, 3 clear lavender bags.
+muted tomato bags contain 2 wavy turquoise bags, 4 pale crimson bags.
+faded teal bags contain 2 dotted yellow bags, 4 dull olive bags.
+dotted blue bags contain 4 striped plum bags, 4 striped cyan bags, 2 drab bronze bags.
+posh teal bags contain 2 vibrant purple bags, 4 plaid fuchsia bags, 2 light green bags, 3 light chartreuse bags.
+muted gold bags contain 1 muted green bag, 1 vibrant brown bag, 5 pale crimson bags.
+clear olive bags contain no other bags.
+dotted beige bags contain 4 posh beige bags, 2 pale silver bags.
+vibrant lavender bags contain 4 dark tomato bags, 5 dim black bags, 3 dim aqua bags.
+wavy maroon bags contain 1 drab turquoise bag, 1 shiny indigo bag.
+muted magenta bags contain 4 posh indigo bags, 4 faded brown bags.
+dull tomato bags contain 1 pale green bag, 1 plaid gold bag, 5 plaid yellow bags, 5 mirrored blue bags.
+mirrored black bags contain 5 drab crimson bags.
+dull green bags contain 4 shiny orange bags.
+dark cyan bags contain 3 pale gold bags.
+faded black bags contain 2 clear beige bags, 4 bright red bags, 1 striped black bag.
+wavy indigo bags contain 2 pale brown bags.
+dim white bags contain 3 clear violet bags, 3 vibrant indigo bags.
+muted green bags contain 1 bright white bag.
+posh coral bags contain 3 shiny purple bags, 2 light brown bags, 3 pale gray bags, 1 dull turquoise bag.
+dull white bags contain 5 bright plum bags, 5 light green bags, 3 plaid purple bags, 1 faded white bag.
+bright salmon bags contain 3 dull indigo bags, 3 muted plum bags, 3 muted bronze bags.
+dotted green bags contain 1 posh purple bag.
+posh salmon bags contain 1 shiny brown bag, 2 dark red bags, 3 drab gold bags.
+pale olive bags contain 4 shiny maroon bags, 3 shiny white bags, 2 dim lavender bags.
+dotted lime bags contain 4 mirrored plum bags, 2 dotted blue bags, 3 light salmon bags.
+dim blue bags contain 5 shiny lime bags, 5 wavy cyan bags, 3 dotted cyan bags, 5 vibrant turquoise bags.
+dim gold bags contain 3 wavy lavender bags, 4 dark silver bags, 4 striped green bags, 4 posh plum bags.
+drab lime bags contain 3 clear black bags.
+dim red bags contain 1 mirrored olive bag, 1 plaid violet bag.
+posh white bags contain 3 pale indigo bags, 1 pale black bag, 5 light green bags, 2 light maroon bags.
+dim brown bags contain 5 dotted black bags, 5 dotted red bags.
+drab gold bags contain 4 mirrored orange bags, 5 drab beige bags, 4 pale gold bags.
+shiny green bags contain 5 mirrored gray bags, 4 pale maroon bags, 1 striped coral bag.
+clear teal bags contain 3 vibrant crimson bags, 4 posh teal bags, 5 striped lime bags, 3 plaid green bags.
+wavy coral bags contain 3 drab beige bags, 2 drab magenta bags.
+plaid tan bags contain 4 faded yellow bags, 4 dull gray bags, 2 shiny lime bags.
+shiny blue bags contain 1 faded white bag, 5 dull turquoise bags.
+striped green bags contain 4 dull blue bags, 1 muted tan bag, 1 wavy lavender bag, 1 muted gray bag.
+wavy tan bags contain 4 wavy bronze bags, 2 pale plum bags, 2 plaid indigo bags, 2 light lavender bags.
+faded violet bags contain 5 dull turquoise bags, 4 bright orange bags, 5 drab lavender bags.
+striped magenta bags contain 5 dotted orange bags, 5 wavy red bags.
+drab beige bags contain 4 pale gold bags.
+shiny coral bags contain 3 mirrored bronze bags.
+faded indigo bags contain 5 clear violet bags, 5 vibrant fuchsia bags, 5 posh violet bags.
+muted maroon bags contain 4 wavy coral bags.
+pale violet bags contain 1 clear olive bag, 1 wavy fuchsia bag, 1 dull lime bag.
+wavy chartreuse bags contain 2 faded blue bags.
+faded purple bags contain 5 clear olive bags, 1 wavy orange bag, 2 posh beige bags, 1 mirrored salmon bag.
+dull fuchsia bags contain 2 dark tan bags.
+light gold bags contain 1 pale blue bag, 4 wavy cyan bags, 1 shiny chartreuse bag.
+bright tan bags contain 2 shiny brown bags, 4 drab gold bags.
+plaid fuchsia bags contain 4 shiny gold bags, 1 mirrored orange bag, 4 dark chartreuse bags, 1 faded tomato bag.
+striped indigo bags contain 4 clear brown bags, 3 wavy silver bags, 1 plaid teal bag, 3 pale maroon bags.
+drab salmon bags contain 1 wavy bronze bag, 2 pale violet bags, 5 plaid indigo bags.
+muted teal bags contain 1 wavy maroon bag, 2 pale purple bags, 4 clear blue bags, 2 bright salmon bags.
+clear violet bags contain 2 light chartreuse bags, 1 light silver bag, 4 dark brown bags.
+posh red bags contain 4 light lavender bags, 4 plaid brown bags.
+muted gray bags contain 1 pale olive bag.
+posh black bags contain 1 muted maroon bag.
+dotted silver bags contain 3 dull turquoise bags, 4 dotted black bags, 3 mirrored black bags.
+wavy olive bags contain 3 dotted coral bags, 5 dim silver bags.
+plaid olive bags contain 3 muted plum bags.
+dim lavender bags contain 2 pale gold bags, 5 mirrored turquoise bags, 1 dull lime bag, 1 dull beige bag.
+dark silver bags contain 4 light silver bags, 1 plaid fuchsia bag.
+shiny tomato bags contain 2 pale coral bags, 4 dim lavender bags, 1 dim purple bag, 3 wavy magenta bags.
+dull purple bags contain 1 shiny maroon bag.
+wavy orange bags contain 2 dim black bags, 1 wavy aqua bag, 4 dull turquoise bags, 3 wavy bronze bags.
+dim gray bags contain 2 faded bronze bags, 3 dull beige bags, 3 pale purple bags, 5 drab gold bags.
+muted yellow bags contain 4 wavy aqua bags.
+striped maroon bags contain 1 plaid plum bag, 5 dotted chartreuse bags, 3 dotted cyan bags, 2 bright plum bags.
+muted white bags contain 2 dark blue bags, 4 posh aqua bags, 5 mirrored violet bags, 5 posh lavender bags.
+wavy cyan bags contain 3 dim black bags, 2 striped lime bags.
+striped teal bags contain 2 bright blue bags, 1 vibrant black bag.
+posh olive bags contain 2 dim plum bags, 5 shiny turquoise bags, 1 vibrant tomato bag, 5 bright magenta bags.
+dotted crimson bags contain 2 clear gray bags.
+clear plum bags contain 4 vibrant teal bags.
+vibrant chartreuse bags contain 4 posh bronze bags, 5 light purple bags.
+vibrant teal bags contain 3 clear blue bags, 4 muted tan bags, 2 wavy fuchsia bags.
+striped beige bags contain 4 faded tomato bags.
+muted bronze bags contain 1 clear lavender bag, 4 mirrored gray bags.
+light lavender bags contain 2 plaid turquoise bags.
+dotted white bags contain 1 light yellow bag, 5 dull maroon bags, 5 posh brown bags, 2 clear olive bags.
+pale teal bags contain 4 dark aqua bags, 5 dull violet bags.
+wavy lime bags contain 2 drab red bags, 1 clear olive bag.
+vibrant black bags contain 3 dim tan bags.
+pale coral bags contain 5 dull gold bags.
+plaid maroon bags contain 2 light fuchsia bags.
+wavy aqua bags contain 5 dark coral bags, 5 mirrored orange bags, 3 muted aqua bags.
+bright blue bags contain 3 faded bronze bags, 1 bright red bag, 5 mirrored coral bags.
+wavy silver bags contain 1 posh olive bag, 1 shiny lime bag, 3 shiny beige bags.
+faded maroon bags contain 1 dull tan bag.
+light yellow bags contain 5 light lavender bags, 5 pale black bags, 1 plaid brown bag, 3 pale violet bags.
+wavy fuchsia bags contain no other bags.
+pale plum bags contain 4 light teal bags, 2 pale black bags, 1 pale green bag, 4 wavy bronze bags.
+drab white bags contain 3 dark tan bags, 5 muted orange bags, 5 dull violet bags, 1 mirrored fuchsia bag.
+pale salmon bags contain 5 faded violet bags, 1 clear cyan bag.
+clear crimson bags contain 4 pale lavender bags, 1 dull turquoise bag, 2 mirrored blue bags.
+posh gray bags contain 4 muted brown bags, 3 shiny teal bags.
+dark aqua bags contain 1 shiny maroon bag, 5 dim brown bags, 4 striped maroon bags, 5 dim blue bags.
+muted red bags contain 3 muted chartreuse bags, 4 wavy red bags, 1 drab tomato bag, 3 shiny yellow bags.
+mirrored purple bags contain 2 clear blue bags, 2 mirrored lavender bags, 1 pale gold bag, 3 bright silver bags.
+striped yellow bags contain 4 light silver bags, 2 dotted red bags, 3 mirrored black bags, 2 faded tomato bags.
+dotted teal bags contain 1 drab bronze bag, 3 muted red bags, 5 mirrored gray bags, 4 bright olive bags.
+clear turquoise bags contain 5 dim bronze bags, 3 faded silver bags, 1 dotted olive bag.
+dull lavender bags contain 5 clear olive bags, 1 mirrored orange bag.
+mirrored indigo bags contain 3 bright fuchsia bags, 3 dotted salmon bags.
+shiny salmon bags contain 2 bright turquoise bags, 1 light plum bag.
+plaid red bags contain 3 clear brown bags, 4 drab tomato bags, 2 plaid indigo bags.
+drab black bags contain 5 dull maroon bags, 2 dark silver bags, 5 bright red bags, 5 bright cyan bags.
+pale purple bags contain 5 light blue bags, 1 dull maroon bag.
+plaid crimson bags contain 2 dark turquoise bags, 5 mirrored bronze bags, 5 dull gold bags, 2 posh yellow bags.
+striped lime bags contain 2 wavy lime bags, 2 shiny teal bags.
+plaid yellow bags contain 5 muted chartreuse bags.
+dark violet bags contain 2 plaid fuchsia bags, 2 muted bronze bags, 3 posh green bags.
+bright red bags contain 4 faded plum bags, 3 dim lavender bags.
+striped purple bags contain 3 mirrored turquoise bags, 1 shiny yellow bag.
+shiny red bags contain 4 wavy coral bags, 3 vibrant salmon bags.
+striped cyan bags contain 2 dark yellow bags.
+posh magenta bags contain 3 vibrant indigo bags, 2 pale violet bags, 3 bright fuchsia bags, 1 shiny teal bag.
+drab cyan bags contain 3 plaid gold bags, 3 clear black bags, 5 striped green bags.
+dim chartreuse bags contain 2 wavy coral bags, 2 striped black bags, 4 dotted tomato bags, 1 muted maroon bag.
+faded beige bags contain 5 dim tomato bags, 3 plaid turquoise bags.
+mirrored teal bags contain 4 posh silver bags, 3 dotted brown bags.
+light turquoise bags contain 2 bright gray bags.
+drab fuchsia bags contain 4 shiny brown bags, 1 muted olive bag.
+mirrored bronze bags contain 3 dull turquoise bags, 3 mirrored turquoise bags, 2 drab red bags.
+shiny fuchsia bags contain 3 striped gray bags, 3 faded blue bags.
+dim beige bags contain 4 dark blue bags, 1 vibrant aqua bag, 2 shiny brown bags, 5 dull violet bags.
+drab gray bags contain 1 wavy maroon bag.
+drab orange bags contain 5 plaid brown bags, 1 vibrant yellow bag, 1 mirrored beige bag, 4 pale white bags.
+dull magenta bags contain 4 light purple bags, 3 dark brown bags.
+vibrant magenta bags contain 4 clear gray bags, 2 shiny aqua bags, 4 striped yellow bags, 3 shiny magenta bags.
+drab tomato bags contain 5 drab crimson bags, 2 dull gold bags, 4 light silver bags.
+wavy violet bags contain 3 faded plum bags.
+mirrored fuchsia bags contain 1 mirrored black bag.
+shiny white bags contain 4 light silver bags, 3 dotted fuchsia bags, 2 faded brown bags, 1 bright bronze bag.
+clear chartreuse bags contain 4 plaid cyan bags, 1 striped gold bag.
+muted turquoise bags contain 3 drab crimson bags, 3 drab olive bags.
+faded aqua bags contain 1 dotted teal bag.
+vibrant gold bags contain 2 light green bags, 1 dotted gold bag.
+drab plum bags contain 5 dim salmon bags, 3 dotted teal bags.
+dotted chartreuse bags contain 2 dull turquoise bags, 1 bright chartreuse bag, 4 faded tan bags, 1 mirrored lavender bag.
+dull silver bags contain 1 mirrored indigo bag.
+pale yellow bags contain 4 drab coral bags.
+clear black bags contain 3 dim coral bags.
+faded gold bags contain 3 faded chartreuse bags, 1 posh gray bag, 3 drab tomato bags.
+muted chartreuse bags contain 1 clear olive bag.
+shiny indigo bags contain 3 vibrant yellow bags, 2 plaid orange bags.
+dull indigo bags contain 5 bright fuchsia bags, 2 shiny yellow bags, 2 plaid indigo bags, 4 bright olive bags.
+faded silver bags contain 2 vibrant olive bags, 4 muted tomato bags.
+pale green bags contain 1 pale red bag, 5 dull lavender bags, 4 clear olive bags.
+dull violet bags contain 1 shiny black bag, 1 shiny fuchsia bag, 3 plaid indigo bags, 2 posh crimson bags.
+dotted lavender bags contain 2 striped lavender bags.
+clear orange bags contain 1 dotted cyan bag, 4 clear tomato bags.
+bright crimson bags contain 1 dull black bag, 2 dim tomato bags, 1 drab bronze bag, 4 wavy orange bags.
+dark orange bags contain 1 vibrant teal bag, 3 dull maroon bags, 4 light purple bags.
+bright teal bags contain 5 mirrored tomato bags, 4 dull lime bags, 4 shiny olive bags.
+vibrant beige bags contain 2 dark turquoise bags.
+dark yellow bags contain 5 dark orange bags, 4 pale red bags, 2 striped fuchsia bags, 5 faded turquoise bags.
+bright fuchsia bags contain 5 striped gray bags, 3 light teal bags, 5 mirrored orange bags.
+clear maroon bags contain 2 dotted yellow bags, 1 mirrored green bag, 4 dotted coral bags, 3 dull indigo bags.
+dim lime bags contain 3 dull fuchsia bags.
+striped olive bags contain 5 wavy fuchsia bags, 2 light purple bags.
+dull gray bags contain 4 dark beige bags, 1 mirrored white bag.
+dim orange bags contain 5 mirrored white bags.
+faded salmon bags contain 2 muted cyan bags.
+clear red bags contain 2 dim violet bags, 1 shiny purple bag, 3 faded salmon bags, 2 mirrored brown bags.
+plaid white bags contain 1 shiny aqua bag, 1 vibrant teal bag.
+shiny violet bags contain 3 striped lime bags, 5 mirrored chartreuse bags, 3 pale red bags, 1 muted orange bag.
+wavy green bags contain 2 dark tomato bags.
+pale lavender bags contain 3 pale orange bags.
+dark fuchsia bags contain 4 pale turquoise bags, 4 pale plum bags, 5 light purple bags, 3 dark beige bags.
+posh indigo bags contain 2 pale violet bags, 5 shiny coral bags, 1 faded chartreuse bag, 2 plaid indigo bags.
+light brown bags contain 1 posh black bag, 4 clear cyan bags.
+faded red bags contain 1 drab maroon bag.
+dark bronze bags contain 1 pale green bag, 4 shiny blue bags, 1 mirrored lime bag.
+pale orange bags contain 4 plaid violet bags, 5 dim silver bags, 1 dim cyan bag, 3 clear blue bags.
+dull brown bags contain 1 light tomato bag, 4 pale tomato bags.
+mirrored plum bags contain 1 shiny tan bag, 5 wavy brown bags.
+dull lime bags contain 4 mirrored orange bags.
+drab yellow bags contain 3 clear teal bags, 3 posh aqua bags, 4 posh fuchsia bags, 3 posh turquoise bags.
+bright cyan bags contain 5 muted lavender bags, 1 wavy purple bag.
+drab chartreuse bags contain 1 wavy tan bag.
+drab tan bags contain 5 drab bronze bags, 5 pale green bags, 1 wavy fuchsia bag.
+shiny tan bags contain 1 pale red bag, 5 clear aqua bags.
+dotted black bags contain 2 dim black bags.
+dull blue bags contain 3 clear blue bags, 5 bright gold bags, 4 pale tomato bags, 4 drab beige bags.
+light olive bags contain 2 mirrored salmon bags, 2 drab violet bags, 2 bright beige bags.
+mirrored magenta bags contain 4 drab tomato bags, 5 clear teal bags, 3 dark coral bags, 5 shiny white bags.
+bright silver bags contain 1 posh brown bag.
+vibrant blue bags contain 3 clear tan bags.
+dark indigo bags contain 3 dim aqua bags, 5 bright aqua bags.
+bright brown bags contain 3 muted purple bags, 1 muted blue bag, 1 light green bag, 1 dark red bag.
+dark salmon bags contain 3 dotted fuchsia bags, 2 dim tan bags.
+mirrored maroon bags contain 2 posh purple bags.
+faded crimson bags contain 1 posh white bag, 2 muted blue bags, 3 dark fuchsia bags, 3 light red bags.
+bright lavender bags contain 4 bright chartreuse bags, 5 muted purple bags, 4 dull aqua bags, 1 shiny blue bag.
+mirrored orange bags contain no other bags.
+wavy bronze bags contain no other bags.
+wavy yellow bags contain 2 mirrored yellow bags, 1 muted maroon bag, 2 striped purple bags, 4 pale silver bags.
+drab magenta bags contain 3 dim indigo bags, 2 wavy bronze bags, 5 shiny yellow bags.
+wavy blue bags contain 3 mirrored gold bags, 3 shiny lavender bags, 1 dim teal bag, 4 clear crimson bags.
+clear purple bags contain 2 dark beige bags.
+light cyan bags contain 1 dotted white bag, 5 muted yellow bags, 1 wavy lime bag.
+clear yellow bags contain 2 plaid olive bags, 1 muted red bag, 1 mirrored bronze bag, 5 striped violet bags.
+light plum bags contain 5 dotted fuchsia bags, 4 vibrant white bags, 5 muted red bags, 5 drab red bags.
+vibrant fuchsia bags contain 1 posh green bag.
+pale maroon bags contain 5 light purple bags, 5 shiny aqua bags, 3 clear teal bags, 2 clear green bags.
+dark teal bags contain 2 dark lavender bags, 4 striped black bags, 1 drab lime bag, 2 dim teal bags.
+clear fuchsia bags contain 2 shiny violet bags, 4 posh aqua bags, 4 bright red bags.
+dotted magenta bags contain 2 dull olive bags, 1 clear magenta bag, 5 light beige bags, 1 dark brown bag.
+muted black bags contain 2 clear blue bags, 2 muted red bags.
+dim magenta bags contain 4 plaid silver bags, 4 plaid olive bags.
+striped lavender bags contain 4 clear blue bags.
+dull beige bags contain no other bags.
+wavy lavender bags contain 2 shiny blue bags, 3 faded tomato bags, 5 dotted tan bags, 5 dull maroon bags.
+light maroon bags contain 5 dim violet bags, 3 wavy turquoise bags, 3 mirrored salmon bags.
+plaid green bags contain 1 dim teal bag, 5 pale brown bags, 2 striped chartreuse bags.
+shiny plum bags contain 1 posh lavender bag, 3 vibrant red bags, 5 dark maroon bags, 1 dotted bronze bag.
+plaid turquoise bags contain 4 light silver bags.
+dim cyan bags contain 1 shiny coral bag, 4 bright lime bags.
+shiny lime bags contain 3 wavy green bags, 5 posh white bags, 1 striped purple bag.
+dim maroon bags contain 1 muted crimson bag.
+dim aqua bags contain 1 dotted silver bag, 3 faded blue bags, 4 striped purple bags.
+muted blue bags contain 2 posh yellow bags, 3 bright tan bags, 1 vibrant salmon bag.
+vibrant olive bags contain 5 clear aqua bags.
+plaid black bags contain 3 striped orange bags.
+vibrant violet bags contain 2 pale gold bags.
+light bronze bags contain 1 shiny maroon bag, 3 light blue bags.
+pale magenta bags contain 5 pale tomato bags.
+vibrant yellow bags contain 4 striped gray bags, 4 dotted yellow bags, 1 wavy fuchsia bag, 3 wavy purple bags.
+shiny black bags contain 5 shiny yellow bags, 3 light purple bags, 1 pale olive bag, 1 clear blue bag.
+dim crimson bags contain 5 posh gray bags, 1 bright chartreuse bag.
+plaid salmon bags contain 2 wavy fuchsia bags, 1 posh olive bag, 2 dim tan bags.
+shiny cyan bags contain 5 light green bags, 1 clear olive bag, 5 pale olive bags.
+pale silver bags contain 3 mirrored orange bags, 1 light lavender bag, 2 faded tomato bags, 1 muted chartreuse bag.
+light red bags contain 4 shiny gray bags, 4 wavy salmon bags, 4 clear lime bags.
+dark turquoise bags contain 4 mirrored orange bags, 4 vibrant brown bags, 4 striped brown bags, 4 mirrored purple bags.
+dark gray bags contain 1 pale violet bag, 5 striped turquoise bags, 2 wavy red bags, 2 light bronze bags.
+pale gray bags contain 5 drab tan bags, 3 clear gray bags.
+striped gold bags contain 2 dotted beige bags.
+muted cyan bags contain 2 light bronze bags, 3 clear green bags.
+faded white bags contain 3 striped tomato bags, 4 shiny black bags, 2 drab tomato bags.
+clear lime bags contain 3 dotted fuchsia bags, 3 vibrant purple bags, 1 shiny bronze bag, 3 muted green bags.
+dull bronze bags contain 5 plaid turquoise bags, 4 dark crimson bags, 3 pale yellow bags, 3 posh chartreuse bags.
+mirrored cyan bags contain 4 clear olive bags, 2 vibrant purple bags, 4 dull olive bags.
+pale bronze bags contain 3 vibrant purple bags, 4 dotted silver bags, 2 mirrored black bags.
+pale blue bags contain 1 dark brown bag, 2 light brown bags, 2 drab lime bags.
+clear bronze bags contain 4 clear blue bags, 2 light chartreuse bags, 1 pale violet bag.
+clear aqua bags contain 2 clear cyan bags.
+plaid plum bags contain 3 faded plum bags.
+mirrored lime bags contain 4 posh brown bags.
+plaid lavender bags contain 1 bright beige bag, 5 bright lime bags, 4 faded aqua bags.
+drab crimson bags contain 2 shiny yellow bags, 1 posh brown bag.
+shiny beige bags contain 2 muted aqua bags, 1 vibrant purple bag, 4 pale black bags, 3 dark chartreuse bags.
+dim green bags contain 4 bright yellow bags, 1 shiny fuchsia bag, 1 wavy tomato bag, 4 shiny black bags.
+drab coral bags contain 5 dark coral bags.
+posh turquoise bags contain 1 dim violet bag, 2 faded turquoise bags.
+dotted plum bags contain 2 dull salmon bags, 5 light green bags, 3 pale red bags, 2 posh yellow bags.
+posh yellow bags contain 1 mirrored salmon bag, 1 drab tomato bag, 3 dark tomato bags, 2 dark chartreuse bags.
+faded orange bags contain 1 drab yellow bag.
+dull teal bags contain 2 plaid crimson bags, 5 shiny violet bags, 1 dull coral bag.
+faded brown bags contain 5 muted red bags.
+bright chartreuse bags contain 5 clear lime bags.
+mirrored tan bags contain 4 striped lavender bags, 4 light plum bags.
+clear indigo bags contain 5 plaid fuchsia bags, 2 plaid brown bags, 5 striped gray bags.
+light teal bags contain 1 dull beige bag, 1 mirrored turquoise bag, 1 mirrored orange bag, 5 wavy bronze bags.
+shiny gold bags contain 2 dark coral bags, 1 mirrored orange bag.
+striped white bags contain 5 dull fuchsia bags.
+wavy white bags contain 5 dull chartreuse bags, 5 wavy green bags.
+mirrored beige bags contain 4 bright white bags, 5 plaid magenta bags, 3 plaid crimson bags, 1 shiny teal bag.
+muted purple bags contain 5 pale black bags, 5 wavy aqua bags.
+vibrant crimson bags contain 5 dim bronze bags, 2 vibrant plum bags.
+striped aqua bags contain 3 plaid cyan bags, 3 light beige bags, 2 drab cyan bags.
+dull crimson bags contain 1 light white bag, 3 drab indigo bags, 1 clear fuchsia bag.
+clear magenta bags contain 4 light brown bags.
+posh maroon bags contain 1 faded plum bag, 3 light olive bags.
+bright violet bags contain 2 dotted bronze bags, 4 clear teal bags, 3 striped magenta bags, 3 muted indigo bags.
+faded coral bags contain 5 dark violet bags, 3 plaid teal bags.
+faded bronze bags contain 5 dotted fuchsia bags, 5 wavy bronze bags, 2 dotted purple bags, 5 dim black bags.
+light beige bags contain 2 shiny olive bags.
+mirrored white bags contain 1 dark indigo bag, 1 drab maroon bag, 3 shiny beige bags, 5 light blue bags.
+muted silver bags contain 4 wavy lime bags, 1 dark tomato bag, 1 bright fuchsia bag, 4 dotted olive bags.
+wavy gray bags contain 2 mirrored turquoise bags, 5 light lavender bags, 3 muted chartreuse bags.
+clear salmon bags contain 5 bright tomato bags, 2 wavy aqua bags.
+dull turquoise bags contain 1 pale tomato bag.
+shiny yellow bags contain 4 dull lime bags, 3 shiny maroon bags, 3 light silver bags.
+mirrored aqua bags contain 3 posh magenta bags, 4 drab tomato bags.
+dull orange bags contain 5 dim teal bags, 3 light olive bags, 2 light magenta bags, 2 plaid orange bags.
+plaid blue bags contain 3 pale purple bags, 1 shiny turquoise bag.
+dim olive bags contain 3 shiny tomato bags, 4 dim black bags, 1 light plum bag.
+dim fuchsia bags contain 1 dark chartreuse bag, 1 mirrored cyan bag, 3 plaid red bags.
+dark plum bags contain 1 light yellow bag, 1 mirrored lime bag, 2 bright salmon bags.
+faded tomato bags contain 2 muted chartreuse bags, 4 dark chartreuse bags.
+dotted aqua bags contain 2 dull lavender bags, 4 pale tomato bags.
+plaid lime bags contain 3 vibrant indigo bags, 1 muted red bag, 1 posh silver bag, 1 dim indigo bag.
+vibrant lime bags contain 5 drab turquoise bags, 2 vibrant chartreuse bags, 4 clear blue bags.
+posh brown bags contain 2 wavy red bags, 2 drab beige bags.
+bright beige bags contain 3 faded blue bags, 4 muted red bags, 5 mirrored lavender bags, 2 pale red bags.
+dotted yellow bags contain 5 striped gray bags, 3 pale gold bags, 2 clear olive bags, 5 mirrored yellow bags.
+dull gold bags contain 5 clear tomato bags, 5 drab beige bags, 4 bright silver bags, 4 drab crimson bags.
+dark maroon bags contain 2 wavy turquoise bags, 4 dark chartreuse bags.
+drab olive bags contain 4 faded bronze bags.
+posh plum bags contain 2 dull tan bags.
+light indigo bags contain 2 wavy yellow bags.
+vibrant tan bags contain 5 shiny teal bags.
+dim purple bags contain 5 light olive bags, 5 mirrored violet bags.
+vibrant gray bags contain 3 bright turquoise bags, 4 dim maroon bags, 4 vibrant chartreuse bags, 2 faded turquoise bags.
+pale tan bags contain 2 light salmon bags, 3 dotted silver bags, 5 clear lime bags, 1 shiny teal bag.
+dark tan bags contain 5 dim indigo bags, 3 shiny beige bags, 5 dim tan bags, 2 pale black bags.
+dotted tomato bags contain 3 shiny black bags, 3 pale crimson bags, 2 dim tan bags.
+posh violet bags contain 4 posh crimson bags, 1 muted fuchsia bag, 4 pale cyan bags, 3 mirrored gold bags.
+clear tan bags contain 2 bright tan bags, 5 faded beige bags.
+bright bronze bags contain no other bags.
+dotted brown bags contain 2 dotted black bags, 3 wavy coral bags.
+muted violet bags contain 3 faded magenta bags, 3 bright magenta bags.
+faded plum bags contain 2 dull lime bags, 4 dim coral bags, 5 shiny maroon bags, 3 pale red bags.
+dark lime bags contain 4 dim tomato bags.
+dull aqua bags contain 4 drab beige bags, 4 drab maroon bags.
+posh purple bags contain 2 vibrant purple bags, 5 shiny gold bags, 2 plaid turquoise bags.
+dull plum bags contain 5 dark brown bags, 4 muted black bags, 1 striped lavender bag.
+faded turquoise bags contain 3 shiny yellow bags, 4 faded plum bags, 5 pale violet bags, 4 dim lavender bags.
+striped bronze bags contain 1 muted bronze bag, 4 clear green bags, 4 shiny fuchsia bags, 5 pale red bags.
+mirrored blue bags contain 4 clear tomato bags, 5 shiny orange bags, 1 dull beige bag, 1 striped silver bag.
+shiny orange bags contain 2 light bronze bags, 4 dark tomato bags, 2 drab gold bags.
+shiny gray bags contain 1 dark maroon bag.
+drab red bags contain 5 wavy purple bags.
+posh fuchsia bags contain 3 mirrored chartreuse bags, 3 vibrant teal bags.
+light crimson bags contain 2 shiny aqua bags, 2 plaid chartreuse bags, 1 shiny gold bag, 1 wavy maroon bag.
+vibrant white bags contain 1 shiny brown bag, 5 light purple bags, 4 dull olive bags, 5 clear cyan bags.
+dark green bags contain 5 drab indigo bags, 1 striped coral bag.
+striped fuchsia bags contain 5 vibrant plum bags.
+bright turquoise bags contain 1 striped fuchsia bag, 3 posh purple bags, 5 dim aqua bags.
+striped tan bags contain 1 dotted cyan bag.
+shiny magenta bags contain 2 dark yellow bags, 1 faded silver bag, 4 muted orange bags, 3 bright fuchsia bags.
+dim violet bags contain 4 wavy bronze bags, 1 bright bronze bag.
+vibrant orange bags contain 2 faded chartreuse bags, 2 vibrant turquoise bags, 2 dull white bags.
+pale gold bags contain 5 light lavender bags, 4 mirrored orange bags, 4 muted chartreuse bags.
+pale red bags contain no other bags.
+plaid brown bags contain 3 mirrored orange bags.
+posh aqua bags contain 5 light blue bags, 1 dark indigo bag, 1 pale red bag, 2 vibrant turquoise bags.
+muted lime bags contain 1 dim chartreuse bag, 1 dotted olive bag, 4 pale violet bags, 3 muted fuchsia bags.
+dotted fuchsia bags contain 4 light teal bags, 1 muted chartreuse bag, 3 dark chartreuse bags, 4 dim lavender bags.
+dim turquoise bags contain 4 clear beige bags, 1 posh magenta bag, 3 faded brown bags.
+muted coral bags contain 4 dark salmon bags, 1 pale tomato bag, 2 shiny brown bags.
+dull chartreuse bags contain 3 shiny white bags, 4 shiny blue bags, 1 pale crimson bag.
+muted indigo bags contain 4 posh silver bags, 1 pale maroon bag, 1 dotted red bag, 1 drab coral bag.
+dim salmon bags contain 5 pale black bags, 3 dark salmon bags, 3 pale red bags, 5 dotted purple bags.
+dotted bronze bags contain 1 dim aqua bag, 2 mirrored maroon bags, 4 muted olive bags, 3 dull fuchsia bags.
+drab silver bags contain 2 dim coral bags, 3 dim salmon bags.
+striped salmon bags contain 2 dotted purple bags, 2 posh green bags, 3 plaid beige bags.
+mirrored tomato bags contain 5 faded tomato bags, 4 wavy red bags.
+dotted cyan bags contain 1 posh white bag, 3 striped lime bags, 4 dotted purple bags, 2 muted red bags.
+striped blue bags contain 4 dark silver bags, 4 pale silver bags.
+faded green bags contain 3 dotted violet bags, 3 pale turquoise bags.
+striped gray bags contain 2 pale tomato bags, 2 dark chartreuse bags, 5 muted red bags, 3 pale violet bags.
+pale lime bags contain 4 posh maroon bags, 2 drab plum bags, 3 drab coral bags.
+posh beige bags contain 4 wavy purple bags, 2 shiny gold bags, 1 dark tan bag.
+dotted tan bags contain 2 bright silver bags, 1 posh bronze bag, 2 dim coral bags, 2 dim tomato bags.
+shiny brown bags contain 4 dim violet bags, 5 bright silver bags.
+mirrored silver bags contain 1 striped blue bag, 2 shiny teal bags, 2 light coral bags, 1 dim beige bag.
+clear silver bags contain 4 mirrored fuchsia bags, 5 dull olive bags, 1 plaid crimson bag.
+dotted orange bags contain 1 mirrored turquoise bag, 3 wavy lime bags, 3 dotted yellow bags, 5 muted lavender bags.
+shiny purple bags contain 1 shiny beige bag, 3 plaid chartreuse bags.
+drab brown bags contain 2 dull indigo bags, 3 mirrored cyan bags, 1 dim crimson bag.
+vibrant tomato bags contain 5 faded plum bags.
+light tan bags contain 1 dark gold bag, 3 light salmon bags.
+vibrant cyan bags contain 4 shiny aqua bags.
+dotted purple bags contain 4 wavy coral bags.
+vibrant red bags contain 4 faded tan bags, 1 drab aqua bag, 4 striped black bags.
+faded lime bags contain 3 light olive bags, 3 striped yellow bags.
+posh gold bags contain 1 dull indigo bag, 1 mirrored chartreuse bag.
+shiny aqua bags contain 2 vibrant turquoise bags.
+light orange bags contain 3 vibrant violet bags, 2 dotted yellow bags, 1 dark gray bag, 5 striped chartreuse bags.
+pale black bags contain 1 plaid brown bag, 2 muted chartreuse bags.
+drab violet bags contain 5 clear cyan bags, 1 pale gold bag, 4 drab salmon bags, 2 posh orange bags.
+dim silver bags contain 5 clear cyan bags.
+muted beige bags contain 1 dim tomato bag, 3 light olive bags.
+drab turquoise bags contain 3 plaid orange bags, 1 light purple bag.
+dark red bags contain 2 vibrant yellow bags, 4 mirrored fuchsia bags, 5 posh bronze bags, 2 dark gold bags.
+vibrant maroon bags contain 5 drab beige bags, 1 dark beige bag, 1 dark brown bag, 4 pale maroon bags.
+wavy magenta bags contain 3 light tomato bags, 5 muted gold bags, 3 muted cyan bags.
+shiny chartreuse bags contain 5 pale yellow bags.
+dull cyan bags contain 4 bright maroon bags, 4 faded bronze bags.
+light black bags contain 4 shiny teal bags, 5 faded beige bags, 1 muted gold bag, 4 plaid silver bags.
+bright green bags contain 5 striped lime bags, 4 muted yellow bags, 4 light beige bags, 4 plaid violet bags.
+striped orange bags contain 1 mirrored orange bag, 2 bright salmon bags.
+muted plum bags contain 3 mirrored orange bags, 1 muted chartreuse bag, 2 dull olive bags, 4 dull brown bags.
+pale white bags contain 5 light silver bags.
+mirrored gray bags contain 1 mirrored violet bag, 5 striped gray bags, 5 dim aqua bags, 4 wavy fuchsia bags.
+wavy beige bags contain 2 shiny beige bags.
+dotted red bags contain 4 dotted purple bags, 3 muted aqua bags, 2 pale tomato bags, 4 pale bronze bags.
+posh lavender bags contain 2 dotted tomato bags, 3 dim lavender bags, 2 muted gray bags, 3 light plum bags.
+mirrored yellow bags contain 4 wavy gold bags.
+wavy brown bags contain 3 dim fuchsia bags, 4 dull turquoise bags.
+plaid chartreuse bags contain 5 plaid red bags.
+shiny turquoise bags contain 2 faded turquoise bags, 3 muted tan bags.
+mirrored brown bags contain 4 dotted fuchsia bags, 4 dim red bags, 2 dotted plum bags.
+dim tan bags contain 1 drab tomato bag, 3 wavy red bags, 1 plaid turquoise bag, 2 clear lavender bags.
+faded yellow bags contain 1 clear bronze bag, 3 clear olive bags.
+bright orange bags contain 5 mirrored blue bags, 3 shiny blue bags.
+striped red bags contain 5 bright green bags, 3 wavy yellow bags.
+bright indigo bags contain 2 light maroon bags, 5 shiny bronze bags, 2 bright white bags.
+light gray bags contain 2 dotted maroon bags.
+light silver bags contain no other bags.
+bright gold bags contain 2 striped fuchsia bags.
+drab purple bags contain 5 light silver bags, 2 dull yellow bags, 2 shiny teal bags.
+mirrored coral bags contain 4 dim plum bags.
+light coral bags contain 3 dim lavender bags, 5 wavy green bags, 2 light bronze bags.
+plaid indigo bags contain 3 mirrored orange bags, 5 pale gold bags.
+dark crimson bags contain 4 dark turquoise bags, 4 plaid green bags, 4 clear fuchsia bags.
+wavy teal bags contain 1 pale silver bag, 4 mirrored chartreuse bags, 4 shiny black bags.
+dull tan bags contain 4 muted magenta bags.
+light violet bags contain 4 faded yellow bags, 5 light maroon bags, 3 clear teal bags, 2 pale crimson bags.
+striped silver bags contain 3 plaid fuchsia bags.
+shiny crimson bags contain 5 muted yellow bags.
+mirrored salmon bags contain 1 dim tan bag.
+dotted coral bags contain 5 dark tan bags.
+wavy gold bags contain 2 wavy turquoise bags, 4 dim indigo bags, 3 wavy bronze bags.
+vibrant bronze bags contain 1 pale purple bag.
+posh silver bags contain 4 posh chartreuse bags, 3 bright salmon bags, 1 dotted bronze bag, 3 shiny coral bags.
+bright purple bags contain 5 clear beige bags, 3 pale yellow bags, 1 wavy tomato bag, 5 pale lavender bags.
+muted tan bags contain 4 bright white bags, 5 dotted silver bags, 2 clear blue bags, 4 mirrored turquoise bags.
+light white bags contain 2 shiny purple bags, 1 dull aqua bag, 2 vibrant blue bags.
+faded fuchsia bags contain 2 dark green bags, 3 shiny violet bags, 4 drab plum bags, 3 vibrant olive bags.
+clear gray bags contain 2 muted red bags.
+dark tomato bags contain 4 dotted purple bags, 3 faded turquoise bags.
+light magenta bags contain 1 dull fuchsia bag.
+light purple bags contain 3 drab magenta bags, 4 dark coral bags, 3 light silver bags.
+vibrant turquoise bags contain 4 dotted black bags.
+dim indigo bags contain 4 muted chartreuse bags.
+dim bronze bags contain 3 drab gold bags, 4 clear brown bags, 2 muted tan bags.
+clear green bags contain 2 plaid fuchsia bags, 1 wavy bronze bag.
+dull maroon bags contain 2 wavy yellow bags, 1 dotted fuchsia bag, 4 mirrored yellow bags.
+dotted gray bags contain 5 dotted white bags, 2 pale tomato bags, 5 bright tan bags, 3 plaid turquoise bags.
+plaid gray bags contain 5 wavy lime bags, 4 dull aqua bags.
+mirrored crimson bags contain 1 shiny lavender bag, 4 plaid purple bags.
+shiny silver bags contain 5 vibrant lavender bags, 3 light coral bags, 5 dark aqua bags.
+dotted salmon bags contain 3 pale tomato bags.
+muted crimson bags contain 4 clear olive bags, 3 dull plum bags, 1 dark gray bag, 1 wavy lime bag.
+muted lavender bags contain 1 bright chartreuse bag, 3 pale yellow bags, 3 pale crimson bags.
+posh tan bags contain 4 faded tomato bags, 3 dotted olive bags, 4 striped maroon bags.
+vibrant salmon bags contain 4 vibrant indigo bags, 1 plaid orange bag.
+faded chartreuse bags contain 2 mirrored orange bags, 1 pale crimson bag.
+striped tomato bags contain 3 dim tan bags, 2 wavy gold bags.
+dim yellow bags contain 1 clear purple bag, 1 wavy red bag, 1 drab bronze bag.
+wavy tomato bags contain 5 dotted tomato bags, 3 dim salmon bags, 5 light tan bags, 3 dull brown bags.
+bright lime bags contain 3 mirrored turquoise bags, 3 dotted tan bags, 3 posh black bags, 5 wavy gold bags.
+muted brown bags contain 4 shiny indigo bags, 4 muted tan bags, 3 wavy tan bags.
+pale cyan bags contain 1 dotted black bag.
+drab green bags contain 1 muted cyan bag.
+dim teal bags contain 4 faded lavender bags, 2 pale violet bags.
+drab lavender bags contain 1 pale gold bag, 5 vibrant brown bags, 4 posh indigo bags, 1 plaid olive bag.
+dotted turquoise bags contain 2 muted lime bags, 4 striped indigo bags.
+clear white bags contain 2 bright lime bags, 1 mirrored coral bag.
+dark purple bags contain 5 wavy crimson bags, 5 light olive bags.
+light tomato bags contain 4 posh black bags, 1 faded blue bag, 5 dim black bags, 3 dull lime bags.
+bright aqua bags contain 3 clear tomato bags.
+bright tomato bags contain 1 clear green bag, 3 bright gray bags, 3 mirrored cyan bags, 5 posh chartreuse bags.
+dull yellow bags contain 5 wavy purple bags, 3 light purple bags, 5 clear cyan bags, 2 wavy coral bags.
+striped coral bags contain 3 mirrored black bags, 5 wavy coral bags, 2 posh white bags.
+shiny bronze bags contain 2 dim tomato bags, 3 dull lime bags.
+vibrant aqua bags contain 4 dull olive bags, 4 mirrored turquoise bags, 1 vibrant teal bag.
+faded magenta bags contain 3 plaid chartreuse bags, 5 plaid white bags, 1 drab lime bag, 3 mirrored fuchsia bags.
+pale beige bags contain 3 wavy gray bags, 5 mirrored tomato bags, 1 bright beige bag.
+pale crimson bags contain 1 pale violet bag, 4 pale black bags, 5 dim tomato bags, 1 mirrored turquoise bag.
+dark blue bags contain 4 dark maroon bags, 1 faded brown bag, 2 wavy red bags.
+posh tomato bags contain 2 posh beige bags, 4 dark maroon bags.
+dim plum bags contain 2 muted crimson bags, 1 striped coral bag, 2 plaid yellow bags, 5 striped violet bags.
+dull black bags contain 3 posh tomato bags, 1 vibrant yellow bag, 4 mirrored salmon bags, 2 light green bags.
+wavy plum bags contain 4 wavy blue bags.
+bright coral bags contain 4 posh gold bags, 2 plaid lime bags, 3 shiny black bags, 5 dim magenta bags.
+posh blue bags contain 2 dotted turquoise bags, 2 bright olive bags, 2 plaid gold bags.
+vibrant purple bags contain 2 mirrored orange bags, 4 dull lavender bags, 2 pale red bags.
+dark white bags contain 4 drab lime bags.
+wavy crimson bags contain 2 dark salmon bags, 5 wavy yellow bags, 2 bright bronze bags, 2 drab crimson bags.
+clear coral bags contain 4 vibrant blue bags.
+muted olive bags contain 3 plaid brown bags, 1 dim fuchsia bag, 2 posh yellow bags.
+plaid violet bags contain 4 muted aqua bags.
+plaid teal bags contain 4 bright tan bags, 2 dark tomato bags.
+plaid purple bags contain 3 posh teal bags.
+pale turquoise bags contain 2 faded purple bags, 4 mirrored maroon bags, 1 mirrored salmon bag.
+muted fuchsia bags contain 5 bright bronze bags, 4 muted gold bags.
+bright olive bags contain 2 faded blue bags, 3 faded turquoise bags, 5 light bronze bags, 3 dim tan bags.
+bright gray bags contain 1 bright white bag, 2 muted orange bags.
+light blue bags contain 1 dotted purple bag, 3 dim black bags, 3 posh purple bags, 2 mirrored violet bags.
+posh bronze bags contain 3 plaid fuchsia bags, 1 drab gold bag, 4 mirrored orange bags, 4 light teal bags.
+faded olive bags contain 3 striped blue bags, 3 dim salmon bags, 4 pale red bags, 2 dull maroon bags.
+dull coral bags contain 2 wavy gold bags, 1 dark magenta bag.
+dull olive bags contain 3 plaid turquoise bags, 3 plaid fuchsia bags, 4 wavy lime bags, 1 dotted black bag.
+plaid orange bags contain 1 dark salmon bag, 1 striped turquoise bag.
+clear blue bags contain 3 dim tan bags, 3 muted red bags, 3 faded tomato bags.
+dark chartreuse bags contain 4 bright bronze bags, 1 dim indigo bag.
+plaid tomato bags contain 5 shiny turquoise bags, 4 clear tan bags, 2 dotted bronze bags, 5 muted magenta bags.
+mirrored green bags contain 2 light silver bags, 3 light brown bags, 4 vibrant purple bags, 2 posh green bags.
+drab blue bags contain 4 drab indigo bags.
+vibrant silver bags contain 3 striped violet bags, 1 striped white bag, 2 bright blue bags.
+shiny olive bags contain 3 drab tomato bags.
+dull red bags contain 4 dim cyan bags, 3 wavy lime bags.
+vibrant plum bags contain 3 wavy coral bags, 2 light lavender bags.
+faded cyan bags contain 1 dim brown bag, 5 posh indigo bags.
+dotted violet bags contain 1 pale tomato bag, 5 dim plum bags.
+striped brown bags contain 5 dim coral bags, 4 clear blue bags.
+dotted indigo bags contain 5 clear salmon bags, 4 dim bronze bags.
+posh cyan bags contain 2 vibrant magenta bags.
+clear beige bags contain 1 bright olive bag.
+dark black bags contain 4 dull crimson bags, 3 plaid green bags.
+mirrored lavender bags contain 5 dark silver bags.
+bright black bags contain 4 shiny brown bags, 1 vibrant crimson bag, 2 posh white bags, 3 wavy gold bags.
+pale indigo bags contain 5 shiny gold bags, 3 light bronze bags, 3 striped turquoise bags.
+plaid cyan bags contain 1 shiny tan bag, 4 dark tan bags, 1 dull yellow bag.
+bright plum bags contain 1 pale chartreuse bag, 3 plaid red bags, 1 faded beige bag, 1 posh gray bag.
+drab maroon bags contain 3 dull olive bags, 1 pale green bag, 2 mirrored turquoise bags.
+pale chartreuse bags contain 4 dim tomato bags.
+striped black bags contain 4 vibrant turquoise bags, 3 faded white bags, 4 light plum bags, 1 pale black bag.
+dotted gold bags contain 5 posh teal bags, 5 striped violet bags.
+posh orange bags contain 1 clear green bag.
+light green bags contain 5 wavy turquoise bags, 2 pale red bags, 3 dark tomato bags, 3 dull turquoise bags.
+plaid beige bags contain 4 light silver bags, 4 plaid turquoise bags, 5 drab purple bags, 4 clear lime bags.
+mirrored violet bags contain 2 wavy fuchsia bags, 5 bright bronze bags.
+striped plum bags contain 2 plaid indigo bags, 5 bright yellow bags, 1 wavy magenta bag.
+bright yellow bags contain 3 wavy yellow bags.
+drab aqua bags contain 5 dark red bags, 2 light gold bags.
+plaid bronze bags contain 1 drab magenta bag.
+faded tan bags contain 4 shiny aqua bags, 2 light chartreuse bags.
+drab indigo bags contain 5 dotted beige bags, 3 dull lime bags, 1 striped violet bag, 4 vibrant tan bags.
+dark gold bags contain 4 mirrored lime bags, 3 dark salmon bags.
+muted orange bags contain 1 dull yellow bag, 2 shiny brown bags.
+plaid gold bags contain 4 drab coral bags, 5 shiny cyan bags.
+posh crimson bags contain 3 light brown bags, 3 bright bronze bags, 3 shiny yellow bags.
+bright magenta bags contain 5 dim lavender bags.
+light chartreuse bags contain 2 drab bronze bags, 3 dim coral bags.
+dim tomato bags contain no other bags.
+dark beige bags contain 3 mirrored yellow bags, 2 dull olive bags, 5 striped brown bags.
+clear cyan bags contain 5 drab beige bags, 1 shiny yellow bag, 5 wavy purple bags, 5 dark chartreuse bags.
+dark coral bags contain 3 dim lavender bags, 3 pale green bags, 4 mirrored orange bags, 1 dim coral bag.
+light lime bags contain 5 mirrored brown bags.
+shiny lavender bags contain 5 drab tan bags.
+faded lavender bags contain 1 light salmon bag, 2 dotted purple bags, 5 pale gold bags, 3 muted gold bags.
+pale tomato bags contain 5 dim coral bags.
+plaid coral bags contain 3 dull blue bags, 1 posh white bag, 3 light orange bags.
+dim coral bags contain no other bags.
+dotted olive bags contain 5 mirrored green bags, 3 drab aqua bags, 2 dull beige bags, 3 dim indigo bags.
+dark brown bags contain 1 muted tan bag, 5 wavy lime bags.
+mirrored red bags contain 5 vibrant aqua bags, 3 bright gray bags, 4 striped gray bags, 2 light lavender bags.
+mirrored olive bags contain 5 dark chartreuse bags, 1 dim lavender bag, 5 faded plum bags.
+dim black bags contain 1 shiny yellow bag, 4 plaid indigo bags.
+shiny maroon bags contain 1 mirrored orange bag, 1 muted chartreuse bag, 5 wavy bronze bags, 1 dull lavender bag.
+pale brown bags contain 4 light teal bags, 1 light plum bag, 3 bright aqua bags.
+striped chartreuse bags contain 2 shiny maroon bags.
+mirrored chartreuse bags contain 4 dotted tan bags, 4 bright bronze bags.
+plaid magenta bags contain 1 vibrant yellow bag, 5 wavy aqua bags, 5 dull turquoise bags, 2 wavy fuchsia bags.
+light salmon bags contain 3 muted tan bags, 3 faded turquoise bags, 4 drab bronze bags, 3 bright bronze bags.
+faded blue bags contain 1 wavy red bag, 5 wavy fuchsia bags, 4 bright bronze bags, 3 faded turquoise bags.
+plaid aqua bags contain 1 pale tan bag, 3 light white bags.
+mirrored turquoise bags contain 5 drab beige bags, 1 faded plum bag, 4 mirrored orange bags.
+shiny teal bags contain 2 pale black bags, 4 dull indigo bags, 4 vibrant teal bags.
+vibrant coral bags contain 3 drab turquoise bags, 4 striped beige bags, 1 wavy turquoise bag, 4 light crimson bags.
+faded gray bags contain 3 striped purple bags.
diff --git a/day7.ml b/day7.ml
new file mode 100644
index 0000000..dfb5ace
--- /dev/null
+++ b/day7.ml
@@ -0,0 +1,131 @@
+open Day7_syntax
+
+let parse_lexbuf = Day7_parser.rules Day7_lexer.token
+
+let parse_file file = Bracket.infile file
+  ~act:(fun chan -> Lexing.from_channel chan |> parse_lexbuf)
+
+
+module BagOrd = struct type t = bag [@@deriving ord] end
+module BagGraph = Graph.Make(BagOrd)
+module BagSet = Set.Make(BagOrd)
+module BagMap = Map.Make(BagOrd)
+
+let make_graph edges =
+  let flatten (l1, ps) = List.map (fun (l2, i) -> l1, l2, i) ps in
+  BagGraph.make_e (List.concat_map flatten edges)
+
+let graph_from_file file = parse_file file |> make_graph
+
+let search_from wanted graph =
+  let seen = ref BagSet.empty in
+  let add _ vout _ = if vout <> wanted then seen := BagSet.add vout !seen in
+  BagGraph.iter_dfs add graph wanted;
+  !seen
+
+let count_from wanted graph =
+  let totals = ref BagMap.empty in
+  let find0 bag = BagMap.find_opt bag !totals |> Option.value ~default:0 in
+  let put bag amount = totals := BagMap.add bag (amount + find0 bag) !totals in
+  let add vin vout e = put vin (e * (find0 vout + 1)) in
+  BagGraph.iter_dfs add graph wanted;
+  !totals
+
+
+let print_map map =
+  let cmp_snd (_, x) (_, y) = Int.compare x y in
+  let print1 (bag, x) = Format.printf "%s: %d\n" bag x in
+  BagMap.to_seq map |> List.of_seq |> List.sort cmp_snd |> List.iter print1
+
+
+let%test_module _ = (module struct
+  let parse_string str = Lexing.from_string str |> parse_lexbuf
+
+  let example1 = {|
+    light red bags contain 1 bright white bag, 2 muted yellow bags.
+    dark orange bags contain 3 bright white bags, 4 muted yellow bags.
+    bright white bags contain 1 shiny gold bag.
+    muted yellow bags contain 2 shiny gold bags, 9 faded blue bags.
+    shiny gold bags contain 1 dark olive bag, 2 vibrant plum bags.
+    dark olive bags contain 3 faded blue bags, 4 dotted black bags.
+    vibrant plum bags contain 5 faded blue bags, 6 dotted black bags.
+    faded blue bags contain no other bags.
+    dotted black bags contain no other bags.
+  |}
+
+  let example_graph1 = parse_string example1 |> make_graph
+  let example_graph1_rev = BagGraph.rev example_graph1
+
+  let%expect_test _ =
+    search_from "shiny gold" example_graph1_rev |> BagSet.iter print_endline;
+    [%expect{|
+      bright white
+      dark orange
+      light red
+      muted yellow |}]
+
+  let%expect_test _ =
+    count_from "shiny gold" example_graph1 |> print_map;
+    [%expect{|
+      dark olive: 7
+      vibrant plum: 11
+      shiny gold: 32 |}]
+
+
+  let example2 = {|
+    shiny gold bags contain 2 dark red bags.
+    dark red bags contain 2 dark orange bags.
+    dark orange bags contain 2 dark yellow bags.
+    dark yellow bags contain 2 dark green bags.
+    dark green bags contain 2 dark blue bags.
+    dark blue bags contain 2 dark violet bags.
+    dark violet bags contain no other bags.
+  |}
+
+  let example_graph2 = parse_string example2 |> make_graph
+
+  let%expect_test _ =
+    count_from "shiny gold" example_graph2 |> print_map;
+    [%expect{|
+      dark blue: 2
+      dark green: 6
+      dark yellow: 14
+      dark orange: 30
+      dark red: 62
+      shiny gold: 126 |}]
+end)
+
+
+let main1 file =
+  let graph = graph_from_file file |> BagGraph.rev in
+  let seen = search_from "shiny gold" graph in
+  Format.printf "%d seen out of %d\n"
+    (BagSet.cardinal seen) (BagGraph.count_vertices graph)
+
+let%expect_test "part 1" =
+  main1 "../../data/day7";
+  [%expect{| 278 seen out of 2988 |}]
+
+
+let main2 file =
+  graph_from_file file |> count_from "shiny gold" |> print_map
+
+let%expect_test "part 2" =
+  main2 "../../data/day7";
+  [%expect{|
+    muted chartreuse: 1
+    dull lime: 4
+    plaid turquoise: 4
+    dull lavender: 6
+    light lavender: 10
+    shiny maroon: 15
+    pale green: 40
+    pale gold: 67
+    faded plum: 97
+    drab beige: 272
+    mirrored turquoise: 1467
+    dim lavender: 7482
+    dark coral: 22577
+    shiny gold: 45157 |}]
+
+let main = Misc.main 7 [|main1; main2|]
diff --git a/day7_lexer.mll b/day7_lexer.mll
new file mode 100644
index 0000000..f314b59
--- /dev/null
+++ b/day7_lexer.mll
@@ -0,0 +1,16 @@
+{ open Day7_parser }
+
+rule token = parse
+| "bag" 's'? { BAGS }
+| "contain"  { CONTAIN }
+| "no"       { NO }
+| "other"    { OTHER }
+| ','        { COMMA }
+| '.'        { DOT }
+| (['a'-'z' 'A'-'Z']+ as word)
+    { WORD word }
+| (['0'-'9']+ as num)
+    { NUMBER (int_of_string num) }
+| [' ' '\t' '\n']
+    { token lexbuf }
+| eof { EOF }
diff --git a/day7_parser.mly b/day7_parser.mly
new file mode 100644
index 0000000..a553be3
--- /dev/null
+++ b/day7_parser.mly
@@ -0,0 +1,25 @@
+%token BAGS
+%token CONTAIN
+%token NO
+%token OTHER
+%token COMMA ","
+%token DOT   "."
+%token EOF
+%token<int>    NUMBER
+%token<string> WORD
+
+%start<Day7_syntax.rules> rules
+
+%%
+
+let rules := ~ = list(rule); EOF; <>
+
+let rule := ~ = bag; CONTAIN; ~ = contents; DOT; <>
+
+let contents :=
+  | NO; OTHER; BAGS; { [] }
+  | ~ = separated_nonempty_list(COMMA, number_bag); <>
+
+let number_bag := n = NUMBER; b = bag; { b, n }
+
+let bag := words = list(WORD); BAGS; { String.concat " " words }
diff --git a/day7_syntax.ml b/day7_syntax.ml
new file mode 100644
index 0000000..7e5e1ee
--- /dev/null
+++ b/day7_syntax.ml
@@ -0,0 +1,11 @@
+type bag = string
+[@@deriving eq, ord, show]
+
+type contents = (bag * int) list
+[@@deriving eq, ord, show]
+
+type rule = bag * contents
+[@@deriving eq, ord, show]
+
+type rules = rule list
+[@@deriving eq, ord, show]
diff --git a/dune b/dune
index 8919a1d..7deb87b 100644
--- a/dune
+++ b/dune
@@ -10,3 +10,6 @@
   (libraries re)
   (preprocess
     (pps ppx_deriving.std ppx_inline_test ppx_expect)))
+
+(ocamllex (modules day7_lexer))
+(menhir (modules day7_parser))
diff --git a/dune-project b/dune-project
index 1d5db23..dcfec5c 100644
--- a/dune-project
+++ b/dune-project
@@ -1,4 +1,5 @@
 (lang dune 2.7)
+(using menhir 2.0)
 (generate_opam_files true)
 (allow_approximate_merlin)
 
@@ -8,4 +9,5 @@
     (re (>= 1.9.0))
     (ppx_deriving (>= 5.2))
     (ppx_inline_test (>= v0.14.1))
-    (ppx_expect (>= v0.14.1))))
+    (ppx_expect (>= v0.14.1))
+    (menhir (>= 20201122))))
diff --git a/graph.ml b/graph.ml
new file mode 100644
index 0000000..b346d84
--- /dev/null
+++ b/graph.ml
@@ -0,0 +1,111 @@
+include Graph_sig
+
+module Make(L: Map.OrderedType) = struct
+  module LabelMap = Map.Make(L)
+  type label = L.t
+
+  type 'v labels   = ('v * int) LabelMap.t
+  type 'v vertices = 'v array
+  type 'e edges    = 'e option array array
+
+  type ('v, 'e) t = {labels: 'v labels; vertices: 'v vertices; edges: 'e edges}
+
+  let make vertices edges =
+    let labels =
+      List.to_seq vertices
+      |> Seq.mapi (fun i (l, v) -> l, (v, i))
+      |> LabelMap.of_seq in
+    let vertices = Array.of_list (List.map snd vertices) in
+    let len = Array.length vertices in
+    let edge arr (i, o, l) =
+      let get x = snd (LabelMap.find x labels) in
+      arr.(get i).(get o) <- Some l in
+    let edges =
+      let arr = Array.make_matrix len len None in
+      List.iter (edge arr) edges;
+      arr in
+    {labels; vertices; edges}
+
+  let make' vertices = make (List.map (fun x -> x, x) vertices)
+
+  let make_e edges =
+    let vertices = List.concat_map (function a, b, _ -> [a; b]) edges in
+    make' vertices edges
+
+  let count_vertices {vertices; _} = Array.length vertices
+
+  let count_edges {edges; _} =
+    let count = ref 0 in
+    Array.iter (Array.iter (Option.iter (fun _ -> incr count))) edges;
+    !count
+
+  let rev ({edges; _} as graph) =
+    let len = Array.length graph.vertices in
+    let edges =
+      Array.init len (fun j -> Array.init len (fun i -> edges.(i).(j))) in
+    {graph with edges}
+
+
+  let iter_dfs f {vertices; edges; labels} label =
+    let seen = Array.(make (length vertices) false) in
+    let rec go i =
+      let edge o = function
+        | None   -> ()
+        | Some e ->
+            let vi = vertices.(i) in
+            let vo = vertices.(o) in
+            go o;
+            f vi vo e in
+      if not seen.(i) then begin
+        seen.(i) <- true;
+        Array.iteri edge edges.(i)
+      end in
+    go (snd (LabelMap.find label labels))
+end
+
+
+let%test_module _ = (module struct
+  open Make(String)
+  let lmap lst = List.to_seq lst |> LabelMap.of_seq
+
+  let print_graph_from = iter_dfs (Format.printf "%s -> %s: %d\n")
+
+  let one_edge = make_e ["a", "b", 7]
+  let triangle = make_e ["a", "b", 7; "b", "c", 10; "c", "a", 61]
+  let vee      = make_e ["a", "b", 1; "a", "c", 2]
+
+  let%test _ =
+    make [] [] =
+    {labels   = LabelMap.empty;
+     vertices = [||];
+     edges    = [||]}
+
+  let%test _ = one_edge =
+    {labels   = lmap ["a", ("a", 0); "b", ("b", 1)];
+     vertices = [|"a"; "b"|];
+     edges    = [|[|None; Some 7|]; [|None; None|]|]}
+
+  let%expect_test _ =
+    print_graph_from one_edge "a";
+    [%expect{| a -> b: 7 |}]
+
+  let%expect_test _ =
+    print_graph_from triangle "b";
+    [%expect{|
+      a -> b: 7
+      c -> a: 61
+      b -> c: 10 |}]
+
+  let%expect_test _ =
+    print_graph_from (rev triangle) "b";
+    [%expect{|
+      c -> b: 10
+      a -> c: 61
+      b -> a: 7 |}]
+
+  let%expect_test _ =
+    print_graph_from vee "a";
+    [%expect{|
+      a -> b: 1
+      a -> c: 2 |}]
+end)
diff --git a/graph.mli b/graph.mli
new file mode 100644
index 0000000..f5146e9
--- /dev/null
+++ b/graph.mli
@@ -0,0 +1,4 @@
+include module type of Graph_sig
+
+module Make(L: OrderedType):
+  S with type label = L.t
diff --git a/graph_sig.ml b/graph_sig.ml
new file mode 100644
index 0000000..647af86
--- /dev/null
+++ b/graph_sig.ml
@@ -0,0 +1,21 @@
+module type OrderedType = Set.OrderedType
+
+module type S = sig
+  type label
+  type ('v, 'e) t
+
+  type 'v vertex := label * 'v
+  type 'e edge := label * label * 'e
+
+  val make: 'v vertex list -> 'e edge list -> ('v, 'e) t
+  val make': label list -> 'e edge list -> (label, 'e) t
+  val make_e: 'e edge list -> (label, 'e) t
+
+  val count_vertices: ('v, 'e) t -> int
+  val count_edges:    ('v, 'e) t -> int
+
+  val rev: ('v, 'e) t -> ('v, 'e) t
+
+  val iter_dfs: ('v -> 'v -> 'e -> unit) -> ('v, 'e) t -> label -> unit
+end
+
diff --git a/seq.ml b/seq.ml
index 4be218a..78bcb9f 100644
--- a/seq.ml
+++ b/seq.ml
@@ -68,3 +68,20 @@ let%test_module _ = (module struct
   let%test "a b || c"  = lc ["a"; "b"; ""; ""; "c"] = ["a b"; "c"]
   let%test "a b | c |" = lc ["a"; "b"; ""; "c"; ""] = ["a b"; "c"]
 end)
+
+let mapi f seq =
+  let rec go i seq =
+    match seq () with
+    | Nil          -> empty
+    | Cons (x, xs) -> cons (f i x) (go (i + 1) xs) in
+  go 0 seq
+
+let with_index seq = mapi (fun i x -> i, x) seq
+
+let%test_module _ = (module struct
+  let mapi' f lst = List.of_seq (mapi f (List.to_seq lst))
+  let with_index' lst = List.of_seq (with_index (List.to_seq lst))
+
+  let%test _ = mapi' (fun i _ -> i) [(); (); ()] = [0; 1; 2]
+  let%test _ = with_index' ["a"; "b"; "c"] = [0, "a"; 1, "b"; 2, "c"]
+end)
diff --git a/seq.mli b/seq.mli
index 060a18b..62ba25d 100644
--- a/seq.mli
+++ b/seq.mli
@@ -16,3 +16,6 @@ val chunks: sep:('a -> bool) -> 'a t -> 'a list t
 
 val line_chunks': string t -> string list t
 val line_chunks: ?join:string -> string t -> string t
+
+val mapi: (int -> 'a -> 'b) -> 'a t -> 'b t
+val with_index: 'a t -> (int * 'a) t