# include <stdio.h>

int main ( )
{
  int days;
  int month;
  int year;

  printf ( "Enter a month and year as integers: " );
  scanf ( "%i%i", &month, &year );

  if ( month == 4 || month == 6 || month == 9 || month == 11 )
  {
    days = 30; 
  }
//
//  This is only approximately the rule for February!
//
  else if ( month == 2 )
  {
    if ( year % 4 == 0 )
    {
      days = 29;
    }
    else
    {
      days = 28;
    }
  }
  else
  {
    days = 31;
  }

  printf ( "In %i, month #%i has %i days.\n", year, month, days );

  return 0;
}