Here it is!

import os

mockThis = input("What are we mocking today?\n")

uppercase = False

mocked = ""

for letter in mockThis:

    if letter.isalpha():

        if uppercase is False:

             letter = letter.upper()

             uppercase = True

        else:

             letter = letter.lower()

             uppercase = False

    mocked += letter

print(mocked)

os.system("pause")

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