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: Accepted)

using System;

public class Program
{
    static string s;

    static string output;

    public static void Main(string[] args)
    {
        Input();
        Proc();
        Output();
    }

    static void Input()
    {
        string[] input = null;

        // スペース区切りの整数の入力
        input = Console.ReadLine().Split(' ');
        s = input[0];
    }

    static void Proc()
    {
        string[] weather = { "Sunny", "Cloudy", "Rainy" };

        for (long idx = 0; idx < weather.Length; idx++)
        {
            if (s.Equals(weather[idx]))
            {
                output = weather[(idx + 1) % 3];
                break;
            }
        }
        
    }

    static void Output()
    {
        //出力
        Console.WriteLine(output);
    }
}