//整百年:若能被400整除是闰年(如:1600,2000)
//非整百年:若能被4整除但不能被100整除是闰年如(如:2016,2020)
int main(){
int year = 0;
scanf("%d",&year);
if((year%400==0)||(year%4==0 && year%100!=0))
printf("yes\n");
else
printf("no\n");
return 0;
}
int main(){ int year = " >
//整百年:若能被400整除是闰年(如:1600,2000)
//非整百年:若能被4整除但不能被100整除是闰年如(如:2016,2020)
int main(){
int year = 0;
scanf("%d",&year);
if((year%400==0)||(year%4==0 && year%100!=0))
printf("yes\n");
else
printf("no\n");
return 0;
}