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

namespace ConsoleApp1
{
    static class AWeatherPrediction
    {
        static void Main(string[] args)
        {
            var s = Console.ReadLine();
            var weathers = new List<string> { "Sunny", "Cloudy", "Rainy" };
            int crntIndex = weathers.IndexOf(s);
            int nextIndex = crntIndex == 2 ? 0 : crntIndex + 1;

            Console.WriteLine(weathers[nextIndex]);
            Console.ReadLine();
        }
    }
}