from datetime import date
import math

class Date:
	# Constructor
	def __init__(self, m, d, y):
		self.month = m
		self.day = d
		self.year = y

	def leap_year(self):
		return ((self.year%4 == 0) and not (self.year%100 == 0 and self.year%400 != 0))

	# To implement this class method, you can use Python's datetime package
	@classmethod
	def today(cls):
		pass

	# https://en.wikipedia.org/wiki/Determination_of_the_day_of_the_week
	# Gauss - disparate variation
	# returns day of week as a String ("Sunday", "Monday", ...)
	def day_of_weekS(self):
		pass

	# returns day of week as a number (0 for "Sunday", 1 for "Monday", ...)
	def day_of_weekN(self):
		pass

	# Returns the Date object one day after self
	def tomorrow(self):
		pass

	# Returns the Date object obtained by adding ndays to self
	def add(self,ndays):
		pass

	# Returns True if self is after d
	def after(self,d):
		pass

	# Returns True if self is same as d
	def equals(self,d):
		pass

	# Returns True if self is before d
	def before(self,d):
		pass

	# Returns the number of days between self and d
	def days_between(self,d):
		pass

	# Please look at part 2 of assignment for string format
	def __str__(self):
		pass