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String-1 > right2
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Given a string, return a "rotated right 2" version where the last 2 chars are moved to the start. The string length will be at least 2.

right2("Hello") → "loHel"
right2("java") → "vaja"
right2("Hi") → "Hi"

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

public String right2(String str) { }

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