#include <iostream>

using namespace std;

typedef long long ll;

bool uruu(int y) {
	if (y % 4) return false;
	if (y % 400 == 0) return true;
	if (y % 100 == 0) return false;
	return true;
}

ll Day(int y, int m, int d) {
	ll ret = d;

	int mon[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

	int sum = 0;
	for (int i = 1; i <= 12; ++i) sum += mon[i];

	mon[2] = uruu(y) ? 29 : 28;
	for (int i = 1; i < m; ++i) ret += mon[i];

	for (int i = 1; i < y; ++i) {
		if (uruu(i)) ret += sum+1;
		else ret += sum;
	}

	return ret;
}

int main() {
	int y1, m1, d1, y2, m2, d2;
	while (cin >> y1 >> m1 >> d1 >> y2 >> m2 >> d2, y1 > -1) {
		cout << ( Day(y2, m2, d2) - Day(y1, m1, d1) ) << endl;
	}
}