#include <iostream>

constexpr int days[12] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
constexpr int ldays[12] = { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 };
bool is_leap_year(const int &n) {
	return (n % 400 == 0) || ((n % 100 != 0) && (n % 4 == 0));
}
void swap(int &ay, int &am, int &ad, int &by, int &bm, int &bd) {
	int y{ ay }, m{ am }, d{ ad };
	ay = by; am = bm; ad = bd; by = y; bm = m; bd = d;
}
bool foward(const int &ay, const int &am, const int &ad, const int &by, const int &bm, const int &bd) {
	return (ay < by) || ((ay == by) && ((am < bm) || (am == bm && ad < bd)));
}
int days_from_new_years_day(const int &y, const int &m, const int &d) {
	return (is_leap_year(y)) ? ldays[m - 1] + d - 1 : days[m - 1] + d - 1;
}
int days_among(int from_year, int from_month, int from_day, int to_year, int to_month, int to_day) {
	if (!foward(from_year, from_month, from_day, to_year, to_month, to_day)) swap(from_year, from_month, from_day, to_year, to_month, to_day);
	int res = days_from_new_years_day(to_year, to_month, to_day) - days_from_new_years_day(from_year, from_month, from_day);
	for (auto y = from_year; y < to_year; ++y) {
		if (is_leap_year(y)) res += 366;
		else res += 365;
	}
	return res;
}
int main() {
	int fy, fm, fd, ty, tm, td;
	for (; std::cin >> fy >> fm >> fd >> ty >> tm >> td && fy >= 0 && fm >= 0 && fd >= 0 && ty >= 0 && tm >= 0 && td >= 0;) {
		std::cout << days_among(fy, fm, fd, ty, tm, td) << std::endl;
	}
	return 0;
}