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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
// input取得パターン（横並び2）
fscanf(STDIN, "%s", $s);
$arr = array('Sunny','Cloudy','Rainy');

$result = array_search($s, $arr);

if($result+1 >= count($arr)){
  $result = 0;
}else{
  $result ++;
}
echo $arr[$result];