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| Given an array of ints, return True if the sequence of numbers 1, 2, 3 appears in the array somewhere. array123([1, 1, 2, 3, 1]) → True array123([1, 1, 2, 4, 1]) → False array123([1, 1, 2, 1, 2, 3]) → True ...Save, Compile, Run (ctrl-enter) | 
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Difficulty: 224.0
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