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.Numerics;
using System.Linq;

namespace c
{
    class Program
    {
        public static readonly long INF = 999999999999;
        public static readonly long MOD = 1000000007;

        static void Main(string[] args)
        {
            var s = Console.ReadLine();

            if (s == "Sunny") Console.WriteLine("Cloudy");
            else if (s == "Cloudy") Console.WriteLine("Rainy");
            else Console.WriteLine("Sunny");
        }
    }

    public class Scanner
    {
        public static string[] Scan() => Console.ReadLine().Split(' ');
        public static int[] IntScan() => Array.ConvertAll(Scan(), int.Parse);
        public static long[] LongScan() => Array.ConvertAll(Scan(), long.Parse);
        public static string[] Scan(int n) => Enumerable.Repeat(0, n).Select(_ => Scan()[0]).ToArray();
        public static int[] IntScan(int n) => Enumerable.Repeat(0, n).Select(_ => IntScan()[0]).ToArray();
        public static long[] LongScan(int n) => Enumerable.Repeat(0, n).Select(_ => LongScan()[0]).ToArray();

    }

    public class Ex
    {
        public static bool Chmin(ref int a, int b) { if (a > b) { a = b; return true; } return false; }
        public static bool Chmin(ref long a, long b) { if (a > b) { a = b; return true; } return false; }
        public static bool Chmax(ref int a, int b) { if (a < b) { a = b; return true; } return false; }
        public static bool Chmax(ref long a, long b) { if (a < b) { a = b; return true; } return false; }
        public static int[] SubArr(int[] arr, int begin, int n) { int[] a = new int[arr.Length]; Array.Copy(arr, begin, a, 0, n); return a; }
    }
}