/*****include*****/
#include <iostream>

/*****デバッグ定義*****/
//#define DEBUG
/*****マクロ定義*****/

/*****名前空間*****/
using namespace std;

/*****グローバル変数置き場*****/

/*****その他関数置き場*****/

/*****main関数*****/
int main(){
/*****変数置き場*****/
	int month_table[] = {31,28,31,30,31,30,31,31,30,31,30,31};
	int mnt_leap_table[] = {31,29,31,30,31,30,31,31,30,31,30,31};
	int numdate1 = 0;
	int numdate2 = 0;
	int sum_date = 0;
	int year1,month1,day1,year2,month2,day2;
	/*****処理部*****/
	while(1){
		cin >> year1 >> month1 >> day1 >> year2 >> month2 >> day2;
		if(year1<0 || month1<0 || day1<0 || year2<0 || month2<0 || day2<0)	break;
		numdate1 = 0;
		numdate2 = 0;
		sum_date = 0;
		
		if((year1%4 == 0 && year1%100!=0) || year1%400==0)
			for(int i=1;i<month1;i++)
				numdate1 += mnt_leap_table[i-1];
		else
			for(int i=1;i<month1;i++)
				numdate1 += month_table[i-1];
		numdate1 += day1;
		if((year2%4 == 0 && year2%100!=0) || year2%400==0)	
		for(int i=1;i<month2;i++)
			numdate2 += mnt_leap_table[i-1];
		else
			for(int i=1;i<month2;i++)
				numdate2 += month_table[i-1];
		numdate2 += day2;
		for(int i=year1;i<year2;i++){
			if((i%4==0 && i%100!=0) || i%400==0)	
				sum_date += 366;
			else
				sum_date += 365;
		}
		sum_date += numdate2 - numdate1;
		cout << sum_date << endl;
	}
	/*****処理終了後*****/
	return 0;
}