CodingBat Python Warmup-1 front

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Python > Warmup-1 > front_back
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Given a string, return a new string where the first and last chars have been exchanged.

front_back('code') → 'eodc'
front_back('a') → 'a'
front_back('ab') → 'ba'
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def front_back(str):

See also Python Example Code. Python help docs: Python Strings | Python Lists | Python If Boolean

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