[BOJ] 9657 돌 게임 3 (JAVA)

https://www.acmicpc.net/problem/9657

9657번: 돌 게임 3

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	
    public static void main(String[] args) throws Exception {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(br.readLine()) % 7;
        if (N == 0 || N == 2) System.out.print("CY");
        else System.out.print("SK");

    }
	
}