Given a string of homework answers, determine which student(s) should be praised based on the minimum number of incorrect positions.
A child has a list of homework answers represented as a string. Each character corresponds to one task result. Your job is to identify which answer pattern is the best match under the problem’s scoring rule and report the winner.
In the original Codeforces task, you compare the child’s answers against several repeating candidate patterns and choose the one with the fewest mismatches.
Your implementation should read the given sequence, evaluate the mismatch count for each candidate pattern, and output the best option according to the problem’s required tie-breaking rule.
Find the candidate pattern that fits the child’s homework best.
Example 1
Input
abcdef
Output
1
Explanation
This is a lightweight illustrative example: the best candidate is the one with the fewest position-wise mismatches.
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