#include using namespace std;

int main() { int y; cin>>y; if(y%4000 || y%40 && y%100!=0){ cout<<"yes"; }else cout<<"no"; return 0; }

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7

#include<iostream>
using namespace std;

int main() {
	int y; cin>>y;
	if(y%400==0 || y%4==0 && y%100!=0){
		cout<<"yes";
	}else cout<<"no";
	return 0;
}