Write a function that checks whether two words are anagrams.

Two words are anagrams if they contain the same letters. For example, silent and listen are

anagrams. The header of the function is:

def isAnagram$($s$1,$ s$2)$:

Write a main function that prompts the user to enter two strings and, if they are anagrams,

displays is an anagram; otherwise, it displays is not an anagram. Do not use method sort or lists