import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int n = scan.nextInt();
//了解闰年的定义规则
if(n % 400 == 0 || (n % 4 == 0 && n % 100 != 0)){
System.out.println("yes");
}else{
System.out.println("no");
}
}
}