import java.util.*;


public class Solution {
    /**
     * 旋转字符串
     * @param A string字符串 
     * @param B string字符串 
     * @return bool布尔型
     */
    public boolean solve(String A, String B) {
        // write code here
        if (A.length() != B.length()) {
            return false;
        }
        return (A + A).contains(B);
    }
}