#include<stdio.h>
int main()
{
int year = 0;
for (year = 1000; year <= 2000; year++)
{
if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
{
printf("%d是闰年\n", year);
}
else {
printf("%d不是闰年\n", year);
}
}
return 0;
}