# include <stdio.h>

int main()

{

 int year,month=2,days;

printf("input the year:");

scanf("%d",&year);

if(((year%100!=0)&&(year%4==0))||((year%100==0)&&(year%400==0)))

{days=29; printf("year:%d,month:2,days:29",year);}

else{ days=28; printf("year:%d,month:2,days:28",year); };

return 0;

}