97. Is It a Rotation?
EasyString
Print YES if string b can be obtained by rotating string a (moving some prefix to the end), else NO.
Input format
Line 1: a Line 2: b
Output format
YES or NO
Example 1
Input
waterbottle erbottlewat
Output
YES
Example 2
Input
abc acb
Output
NO
Constraints
1 ≤ |a|, |b| ≤ 10⁵
Read input from standard input and print the answer to standard output. Your code is judged against 5 test cases, most of them hidden.
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