def add(word):
	""" Maintains two global lists - one for the words, and a list called index which has 26 integers, with each integer representing the starting index of the corresponding letter in the main list. For instance, the if index[3] = 12, it means that the index for the first word in main_list beginning with "c" is 12. Everytime a word is added, the main_list is traversed to find out where to insert it alphabetically. The index list is updated correspondingly to show the new starting positions of addresses in main_list"""

	pass



def check(word):
	""" Checks to see the starting alphabet of the word, then looks up the corresponding letter in index, and finds the starting address of the letter in the main_list. It then serially traverses through the main_list starting at the previously found address. If it doesnt find that word and the next alphabet starts, then it returns false. Else it returns true."""

	pass

def remove(word)
	""" Removes the word from the list of words. Uses a mechanism like in check to find out the word location. It also updates values in index to reflect new starting addresses."""

	pass