Problem:
Score : 200 points

Problem Statement

You are given string S and T consisting of lowercase English letters.

Determine if S equals T after rotation.

That is, determine if S equals T after the following operation is performed some number of times:

Operation: Let S = S_1 S_2 ... S_{|S|}. Change S to S_{|S|} S_1 S_2 ... S_{|S|-1}.

Here, |X| denotes the length of the string X.

Constraints

2 \leq |S| \leq 100

|S| = |T|

S and T consist of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S
T

Output

If S equals T after rotation, print Yes; if it does not, print No.

Sample Input 1

kyoto
tokyo

Sample Output 1

Yes

In the first operation, kyoto becomes okyot.

In the second operation, okyot becomes tokyo.

Sample Input 2

abc
arc

Sample Output 2

No

abc does not equal arc after any number of operations.

Sample Input 3

aaaaaaaaaaaaaaab
aaaaaaaaaaaaaaab

Sample Output 3

Yes

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp6
{
    class Program
    {
        static void Main(string[] args)
        {
            var sa = Console.ReadLine();
            var ta = Console.ReadLine();

            if (sa == ta)
            {
                Console.WriteLine("Yes");
                return;
            }

            for (int i = 1; i < sa.Length; i++)
            {
                Change(ref sa);
                if (sa == ta)
                {
                    Console.WriteLine("Yes");
                    return;
                }


            }

            Console.WriteLine("No");

        }

        static void Change(ref string s) {

            StringBuilder word = new StringBuilder();
            word.Append(s.Substring(s.Length - 1, 1));
            word.Append(s.Substring(0,s.Length - 1));

            s = word.ToString();
        }
       
    }
}