#include <iostream>
using namespace std;

int days[20];

bool isLeap(int year){
	if(year % 4 != 0)return false;
	if(year % 400 != 0 && year % 100 == 0)return false;
	return true;
}

int calc(int y, int m, int d){
	days[2] = isLeap(y) ? 29 : 28;
	int sum = 0;
	for(int i=1;i<m;i++)sum += days[i];
	sum += d;
	return sum;
}

int cereal(int y, int m, int d){
	if(y == 0)return calc(y, m, d);
	int sy = y - 1;
	int ly = sy / 4 - sy / 100 + sy / 400 + 1;
	int ny = y - ly;
	int sum = ly * 366 + ny * 365 + calc(y, m, d);
	return sum;
}

int main(){
	for(int i=1;i<=12;i++)days[i] = 31;
	days[4] = days[6] = days[9] = days[11] = 30;

	int y1, m1, d1, y2, m2, d2;
	while(cin >>  y1 >> m1 >> d1 >> y2 >> m2 >> d2){
		if(y1 < 0 || m1 < 0 || d1 < 0 || y2 < 0 || m2 < 0 || d2 < 0){
			break;
		}
		cout << cereal(y2, m2, d2) - cereal(y1, m1, d1) << endl;
	}
	return 0;
}