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 Feb 04, 2026

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Marco Riani Sune 240121390138赵浩宇 Lorenzo

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