diff --git a/day9.bqn b/day9.bqn
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--- /dev/null
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+Next ← {∧´𝕩=0 ? 0 ; (¯1⊸⊑ + 𝕊∘(¯1⊸↓)∘(«-⊢)) 𝕩}
+Read ← •BQN {' ':'‿';'-':'¯';𝕩}¨
+
+Part1 ⇐ +´ Next∘Read¨∘•FLines
+Part2 ⇐ +´ Next∘⌽∘Read¨∘•FLines