#include <iostream>
#include <string>
using namespace std;

int Emonth[12] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };

long long daycount(int year , int month , int day)
{
	long long total = 0;
	total += year * 365;		//year??´1???1??\?????§?????\??°

	total += Emonth[month-1];			//1???1??\???month???1??\?????§?????\??°(???????????´??????????????????)
	
	total += year / 4;
	total -= year / 100;
	total += year / 400;		//???????????´????????°

	if (((year % 4 == 0) && (year % 100 != 0 || year % 400 == 0)) && (month < 3))
	{
		total--;		//???????????´??????2???29??\??????????????????????????§?????????????????????
	}

	total += day;		//1??\???day??\?????§?????\??°

	return total;
}


int main()
{
	int y1, y2, m1, m2, d1, d2;
	while (1)
	{
		long long total1 = 0, total2 = 0;
		cin >> y1 >> m1 >> d1 >> y2 >> m2 >> d2;
		if (y1 < 0 || m1 < 0 || d1 < 0 || y2 < 0 || m2 < 0 || d2< 0) break;

		total1 = daycount(y1, m1, d1);
		total2 = daycount(y2, m2, d2);

		cout << total2 - total1 << endl;

	}


	return 0;
}