#include<stdio.h>
int main()
{
	int year,month,day,leap,sum;

	printf("Input year,month,day:");
	scanf("%d %d %d",&year,&month,&day);
	if(year%400==0||(year%4==0&&year%100!=0))
		leap=1;
	else
		leap=0;
	switch(month)
	{
	case 1:sum=0;break;
	case 2:sum=31;break;
	case 3:sum=59;break;
	case 4:sum=90;break;
	case 5:sum=120;break;
	case 6:sum=151;break;
	case 7:sum=181;break;
	case 8:sum=212;break;
	case 9:sum=243;break;
	case 10:sum=273;break;
	case 11:sum=304;break;
	case 12:sum=334;break;
	default:printf("no this year");
	}
	sum+=day;
	if(month>2)
		sum+=leap;
	printf("Days of year:%d",sum);
}