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 (1.42.0) (judge verdict: Accepted)

use std::io;

fn main() {
    let mut w = String::new();

    io::stdin()
        .read_line(&mut w)
        .expect("Failed to read line");

    let w_str :&str = &w;

    match w_str {
        "Sunny\n" => println!("Cloudy"),
        "Cloudy\n" => println!("Rainy"),
        "Rainy\n"=> println!("Sunny"),
            _ => println!("retry enter!")
    }
}