#include<iostream>
using namespace std;
int GetDays(int year, int month, int day)
{
int days[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
int d = 0;
if (year < 1 || month < 0 || month>12 || day < 1 || (day > days[month - 1]))
{
return -1;
}
for (int i = 0; i < month-1; i++)
{
d += days[i];
}
if ((year% 4 == 0 && year% 100 != 0) || year% 400 == 0)
{
if (month > 2)
{
d += 1;
}
}
return d + day;
}
int main()
{
int year, month, day;
while (cin >> year >> month >> day)
{
cout << GetDays(year, month, day)<<endl;
}
system("pause");
return 0;
}