#include <stdio.h>
#include <stdbool.h>
bool checkYear(int year)
{
return (((year % 4 == 0) && (year % 100 != 0)) ||
(year % 400 == 0));
}
int main()
{
int year = 2000;
if(checkYear(year) == true){
printf("%d la nam nhuan!", year);
}else{
printf("%d khong phai nam nhuan!", year);
}
return 0;
}