#include <iostream>
using namespace std;
int m[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
int main()
{
	int year = 2000, morth = 1, day = 1;
	int a = 2000, b = 5, c = 4;
	for (int i = 1; ; i ++ )
	{
		day ++ ;
		if ((year % 4 == 0 )&& (year % 100 != 0) || (year % 400 == 0))
		{
			m[2] = 29;
			if (day == m[morth] + 1)
			{
				morth ++ ;
				day = 1;
			}
		}
		else 
		{
			m[2] = 28;
			if (day == m[morth] + 1)
			{
				morth ++ ;
				day = 1;
			}
		}	
		if (morth == 13)
		{
			morth = 1;
			year ++ ;
		}
		if (year == a && morth == b && day == c)
		{
			cout << i + 1;
			break;
		}
	}
	//printf("%d-%02d-%02d", year, morth, day);
	return 0;
}