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 Go (1.6) (judge verdict: Accepted)

package main

import "fmt"

var weather = [...]string{"Sunny", "Cloudy", "Rainy"}

func tomorrow(s string) string {
	for i, v := range weather {
		if s == v {
			return weather[(i+1)%3]
		}
	}
	return ""
}

func main() {
	var s string
	fmt.Scanln(&s)
	fmt.Println(tomorrow(s))
}