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 PHP (5.6.30) (judge verdict: Wrong Answer)

<?php
$Weather = ["Sunny", "Cloudy", "Rainy"];
$ans = fgets(STDIN);
function num($x){
    if($x == 2){
        return 0;
    }else{
        return $x++;
    }
}
$a = array_keys($Weather, $ans);
echo $Weather[num($a)];

?>