def main():

	# Declare variables
	choice = ''
	repeat = 'y'
	emailAddress = ''
	username = ''
	password = ''
	emailAddresses = [] # list to hold all email addresses
	userNames = [] # list to hold all user names
	passwords = [] # list to hold corresponding passwords

	# Display program header
	print('Login Verification Program')
	print('--------------------------')

	while repeat == 'y':

		# Display program menu
		print('\n1. Enter new login credentials')
		print('2. Display login credentials')
		print('3. Exit program')
		choice = input('Enter selection:\n')

		if choice == '1':
			# Obtain user credentials
			# emailAddress = getEmailAddress()
			# password = getPassword()
			# username = getUsername(emailAddress)

			# **************** FIX ME 4 *****************
			# Store credentials into respective lists

			# Display confirmation message

		elif choice == '2':
			# Call the displayCredentialsReport function to display all credentials
			# displayCredentialsReport(emailAddresses, passwords, userNames)

		elif choice == '3':
			# End the loop
			repeat = 'n'
		else:
			# Catchall for incorrect menu selections
			print('You have made an incorrect selection!')

# **************** FIX ME 1 *****************
def getEmailAddress():
    # HINT: Think about using Booleans when testing for the @ sign and period
    # if they are present in the string, then change the Boolean to True
	return emailAddress

# **************** FIX ME 2 *****************
def getPassword():
    # HINT: Think about using Booleans when testing each of the password conditions separately
    # if all conditions are passed, then the password is valid
	return password

# **************** FIX ME 3 *****************
def getUsername(emailAddress):
    # HINT: Think about using a location variable initialized to -1 used to the @ sign
	return username

# **************** FIX ME 5 *****************
def displayCredentialsReport(emails, passwords, usernames):

	# Display report header
	print('Login Credential Report')
	print('-----------------------\n')

	print('Email Address      ' + '\t' + 'Password    ' + '\t' + 'Username')
	print('-------------      ' + '\t' + '--------    ' + '\t' + '--------')

	# loop through lists to display logins
    # Complete the function here

if __name__ == '__main__':
    main()