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: Runtime Error)

use proconio::{input, fastout};

#[fastout]
fn main() {
    input!{
        s: String
    };
    let w = ["Sunny", "Cloudy", "Rainy"];
    for i in 0..w.len() {
        if s == w[i] {
            println!("{}", w[i + 1 % 3]);
            break
        }
    }

}