import java.util.Scanner;

public class Main  {

    public  static  void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int year = sc.nextInt();
        if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)){
            System.out.println("yes");
        }else {
            System.out.println("no");
        }
    }
}