#include <iostream>
#include <string>

using namespace std;

int main()
{
    float day = 3;
    float month = 7;
    float year = 2008;
    int JDN = 0;
     
    int DayofWeek;
    int intRes1 = 0;
    int intRes2 = 0;
    int intRes3 = 0; 
	
	if((year > 1582) || // flags all years greater than 1582
           (month > 10) && (year == 1582) || // flags months over 10 in 1582
           (month == 10) && (day > 15) && (year == 1582)) // flags month 10 and days over 15 in year 1582
		
	intRes1 = int(2- year /100 + year / 400);
	intRes2 = int(365.25 * year);
	intRes3 = int(30.6001 * (month + 1));
	JDN = int((intRes1 + intRes2 + intRes3 + day) + 1720944.5);
	DayofWeek = ((JDN + 3) % 7);  
    cout << DayofWeek ;
		
getchar();
return 0;

}