#include<stdio.h>
struct {
int year;
int month;
int day;
}date;
int main(){
int days;
printf("输入年月日:\n");
scanf("%d,%d,%d",&date.year,&date.month,&date.day);
switch(date.month){
case 1:days=date.day; break;
case 2:days=date.day+31; break;
case 3:days=date.day+59; break;
case 4:days=date.day+90; break;
case 5:days=date.day+120; break;
case 6:days=date.day+151; break;
case 7:days=date.day+181; break;
case 8:days=date.day+212; break;
case 9:days=date.day+243; break;
case 10:days=date.day+273; break;
case 11:days=date.day+304; break;
case 12:days=date.day+334; break;
}
if((date.year%4==0&&date.year%100!=0||date.year%400==0)&&date.month>=3){
days=days+1;
}
printf("%d年%d月%d日是%d年的第%d天",date.year,date.month,date.day,date.year,days);
}