If input is a string 'yellow' the output should be 'leywol'. Locate the middle of the string and reverse the first (yel) and second (low)parts of the string.

If the length of the string is odd, leave the middle letter unchanged.

Input 'letter' output 'telret'

Input 'apple' output 'papel'

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Last Solution submitted on Jan 06, 2026

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Marco Riani Mehdi Dehghan Sune 240121390138赵浩宇

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