#include <iostream>
#include <iomanip>
#include <string>

using std::cout;
using std::cin;
using std::endl;
using std::boolalpha;
using std::string;
using std::setw;


//Function prototypes
int leaptest(int);
string calheader(int, int);
int days(int, int);
int weekday(int, int);

//Sets up a bool to test for leapyears
bool leapyear;

int main()
{
  // Initialize space for month and year input
  int month, year;
  //Asks for input
  cout << "Month and Year? : ";
  // inputs data into space
  cin >> month >> year;

int day, dayofweek, leapyeartest;

//Calls leaptest function sending year
leaptest(year);

// creates a string for real month
string realmonth;

//calls the function that prints header info
calheader(month, year);

// calls days function
days(month, year);

// calls function to find out days of week
weekday(month, year);

//for (int counter = 0; counter < day; counter++)
//    cout << setw(4) << "- ";
}

int leaptest(int year)
{

if (year % 4 == 0) {
  if (year % 100 == 0) {
    if (year % 400 == 0)
leapyear = true;
  else leapyear = false;
  }
  else leapyear = true;
}
else leapyear = false;
return leapyear;
}

string calheader(int month,int year)
{

string realmonth;
if (month < 1 || month > 12)
   cout << "Incorrect Input!";
else if (month == 1)
  realmonth = "January";
else if (month == 2)
  realmonth = "Febuary";
else if (month == 3)
  realmonth = "March";
else if (month == 4)
  realmonth = "April";
else if (month == 5)
   realmonth = "May";
else if (month == 6)
   realmonth = "June";
else if (month == 7)
   realmonth = "July";
else if (month == 8)
   realmonth = "August";
else if (month == 9)
  realmonth = "September";
else if (month == 10)
  realmonth = "October";
else if (month == 11)
  realmonth = "November";
else if (month == 12)
  realmonth = "December";

cout << setw(10) <<  realmonth << "   " <<  year << endl;

cout << setw(4) << " S " << " M " << " Tu " << " W "
     << " Th " << " F "  << " S " << endl;

}

int days(int month,int year)
{
int days;
int month2;

month2 = month + 11;
month2 = month2 * 7;
month2 = month2 % 12;

if (month2 < 7)
  days = 31;
else
  days = 30;
if (month == 2)
  {
   if (leaptest(year) == true)
    {
    days = 29;
    }
   else
   {
     days = 28;
   }
//return days;
}
}
int weekday(int month,int year)
{
int yearedit;
int totaldays;
int monthedit;
int correction;
int daysofweek;
yearedit = year - 1;
totaldays = yearedit * 365;
totaldays += (yearedit / 4);
totaldays -= (yearedit / 100);
totaldays += (yearedit / 400);
monthedit = (month * 367) - (362) / (12);
totaldays += monthedit;
totaldays += 1;
if (month <= 2)
   correction = 0;
if (month > 2 || leaptest(year) == true)
   correction = -1;
if (month > 2 || leaptest(year) == true)
   correction = -2;
totaldays += correction;
daysofweek = totaldays % 7;
cout << daysofweek << endl;

//return daysofweek;

}