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Input ← regex"\\d+" &fras "../day_06.txt"
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# part one
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Races ← ⍉↯2_¯1 ⊐∵⋕ Input
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/×≡(/+<×⊃-∘⇡.⍘⊟) Races
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# part two
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Races ← ∵⋕⊐≡/⊂ ↯2_¯1 Input
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/+<×⊃-∘⇡.⍘⊟ Races
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