日期之差

#include <iostream>
#include <cstdio>

using namespace std;

bool isLeapYear(int);
int getMaxday(int ,int );
 
typedef struct DATE{
	int year;
	int month;
	int day;
	
	void nextDay(){
		day++;
		if(day > getMaxday(year,month)){
			day = 1;
			month++;
			if(month > 12){
				month = 1;
				year++;
			}
		}
	}
	bool operator < (const DATE &b)const{
		if(year != b.year) return year < b.year;
		if(month != b.month) return month < b.month;
		if(day != b.day) return day < b.day;
	}
	
	bool operator !=(const DATE &b)const {
		return year != b.year || month != b.month || day != b.day;
	} 
}Date; 

//判断闰年 
bool isLeapYear(int year){
	return year % 400 == 0 || year % 4 == 0 && year % 100 != 0;
}
//获得该年该月的最大天数 
int getMaxday(int year,int month){
	switch(month){
		case 1:
		case 3:
		case 5:
		case 7:
		case 8:
		case 10:
		case 12:
			return 31;
		case 4:
		case 6:
		case 9:
		case 11:
			return 30;
		case 2:
			return isLeapYear(year)? 29: 28;
		default:
			return -1;
	}
}

int main(){
	
	Date d1,d2;
	d1.year = 2011;
	d1.month = 11;
	d1.day = 11;
	
	while(scanf("%d%d%d",&d2.year,&d2.month,&d2.day) != EOF){
		if(d2 < d1){
			Date tmp = d1;
			d1 = d2;
			d2 = tmp;
		}
		
		int days = 0;
		while(d1 != d2){
			d1.nextDay();
			days++;
		}
		int w = 0;
		w= ((days + w) % 7 + 4) % 7 + 1;
		
		printf("%d\n",w);
	}
	return 0;
}