Problem:
Score: 100 points

Problem Statement

The weather in Takahashi's town changes day by day, in the following cycle: Sunny, Cloudy, Rainy, Sunny, Cloudy, Rainy, ...

Given is a string S representing the weather in the town today. Predict the weather tomorrow.

Constraints

S is Sunny, Cloudy, or Rainy.

Input

Input is given from Standard Input in the following format:

S

Output

Print a string representing the expected weather tomorrow, in the same format in which input is given.

Sample Input 1

Sunny

Sample Output 1

Cloudy

In Takahashi's town, a sunny day is followed by a cloudy day.

Sample Input 2

Rainy

Sample Output 2

Sunny

Solution in C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
public class program{
    public static void Main(){
    
        var tapdance = Console.ReadLine();
        var count = tapdance.Length;
        var answer = "Yes";
      
        for(var i = 0; i < count; i ++)
        {
           	if(i % 2 == 0) //偶数
           	{
           		if(tapdance[i] == 'L') // Lを含んでいたら"No"
           		{
                    answer = "No";   
                    break;
                } 
           	}
            else //奇数
            {
                if(tapdance[i] == 'R') // Rを含んでいたら"No"
                {
                     answer = "No";
                     break;
                }
            }        	
        }
		Console.WriteLine(answer); 
    }
}