#include<stdio.h>
int main ()
 {	int year,a;
 	scanf("%d",&year);
 	if(year%400==0)
 	   a=1;
 	else
 	{
	   if(year%4==0&&year%100!=0)
	      a=1;
	   else
	      a=0;
	 }
    if(a==1){
    printf("yes\n",year);
}
    if(a==0){
    printf("no\n",year);
	}
     return 0;
}