#include <stdio.h>
int main(){
    
    //SAYED AL MAMUN_LU
    
    int n;
    scanf("%d",&n);
    
    if(1996 < n  && n < 2100){
        if((n%4 == 0  &&  n%100 != 0)  ||  (n%400 == 0) ){
            printf("YES\n");
        }
        else {
            printf("NO\n");
        }
    }
    return 0;
}