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;

namespace B
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] S = Console.ReadLine().ToCharArray();
            char[] T = Console.ReadLine().ToCharArray();
            int length = S.Length;
            for (var i = 0; i < length; i++)
            {
                for (var j = 0; j < length; j++)
                {
                    if (S[i] == T[j])
                    {
                        int count = 0;
                        int sPos = i;
                        int tPos = j;
                        while (count < length)
                        {
                            if (S[sPos] == T[tPos])
                            {
                                count++;
                                sPos++;
                                tPos++;
                                if (sPos >= length) sPos = 0;
                                if (tPos >= length) tPos = 0;
                            }
                            else
                            {
                                break;
                            }
                        }
                        if (count == length)
                        {
                            Console.WriteLine("Yes");
                            return;
                        }
                    }
                }
            }
            Console.WriteLine("No");
        }
    }
}