#include <stdio.h>
#include <stdlib.h>


int main(){
    int year,month,day,sum=0;
    printf("請輸入年 月 日\n");
    scanf("%d %d %d",&year,&month,&day);
    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;
    }
    sum=sum+day;
    int flag;
    if(year%400==0||(year%4==0&&year%100!=0)){  //判斷閏年
        flag=1;
    }else{
        flag=0;
    }
    if(flag==1&&month>2){
        sum=sum+1;
    }
    printf("這是今年第%d天",sum);

}