#include<stdio.h>
int main(){
	int n;
	scanf("%d",&n);
	if(n%4==0 && n%100!=0 || n%400==0){
		printf("yes");
	}else{
		printf("no");
	}

    return 0;
}

/**************************************************************
	Problem: 1646
	User: admin
	Language: C
	Result: Accepted
	Time:16 ms
	Memory:1144 kb
****************************************************************/