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+# 796. Rotate String
+
+"""
+given two strings 's' and 'goal', return 'true' if and only if 's' can become
+'goal' after some number of shifts on 's'. a shift on 's' consists of moving
+the leftmost character of 's' to the rightmost position. for example, if 's =
+"abcde"', then it will be "bcdea" after one shift.
+"""
+
+
+class Solution(object):
+ def rotateString(self, s, goal):
+ """
+ :type s: str
+ :type goal: str
+ :rtype: bool
+ """
+ return len(s) == len(goal) and goal in s + s
+
+
+if __name__ == "__main__":
+ obj = Solution()
+ print(obj.rotateString(s="abcde", goal="cdeab"))
+ print(obj.rotateString(s="abcde", goal="abced"))