def which_day(year, month, day):
  def month_days(month):
    if month == 2 and (year % 100 != 0 and year % 4 == 0 || 
    if month < 8 
cb1b6049180c8d39084cd75aca3df36ec981d2ce
def which_day(year, month, day):
  def month_days(month):
    if month == 2 and (year % 100 != 0 and year % 4 == 0 || 
    if month < 8 