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String-1 > deFront
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Given a string, return a version without the first 2 chars. Except keep the first char if it is 'a' and keep the second char if it is 'b'. The string may be any length. Harder than it looks.

deFront("Hello") → "llo"
deFront("java") → "va"
deFront("away") → "aay"

...Save, Compile, Run (ctrl-enter)

public String deFront(String str) { }

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Difficulty: 190.0

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