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 Rust (1.15.1) (judge verdict: Accepted)

use std::io;

fn main() {
	let we = ["Sunny", "Cloudy", "Rainy"];
	let mut buf = String::new();
	io::stdin().read_line(&mut buf).expect("");
	let s = buf.trim();
	let mut a = 0;
	for n in 0..3 {
		if s == we[n] {
			a = (n + 1) % 3;
			break;
		}
	}
	println!("{}", we[a]);
}