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$ 467..114..
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$ ...*......
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$ ..35..633.
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$ ......#...
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$ 617*......
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$ .....+.58.
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$ ..592.....
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$ ......755.
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$ ...$.*....
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$ .664.598..
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TestInput ←
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Table ← ⊜(⊂:@.)≠@\n.
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Adjacency ← ↯¯1_2-1⇡3_3
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Numbers ← ⊜⋕×⊃(≤@9|≥@0).♭
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Classify ← ⍜(♭|⍜(⊜□|≡(□↯⧻°□)⊃(∘|+@\x80⇡⧻))×⊃(≤@9|≥@0).)
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PartI ← (
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×⊃(<@\x80|≠@.|∘)
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≡(↥↥⬚0⊃(↻1|↻¯1|∘))↥↥⬚0⊃(↻1|↻¯1|∘)
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/+⊏-@\x80⊝▽≥@\x80.▽∩♭
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)
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PartII ← (
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⊚=@*.
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⊠+:Adjacency
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≡(□⊝▽≥@\x80.≡(⊡)⊙¤)⊙¤
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/+≡(/×⊏-@\x80°□)⊙¤▽=2≡⧻.
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)
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⊃(Classify|Numbers) Table TestInput
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⊃(PartI|PartII)
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⊃(Classify|Numbers) Table &fras "day03.in"
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⊃(PartI|PartII)
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