import base64

def main():
	flag = input("Enter flag >> ")
	if base64.b85encode(bytes(flag, 'utf-8')) == b'O-V&fdvY^&Gjek?UomrZUuQ5dWPJ':
		print("OH MAN!!! YOU'RE C0000000L!!!")
	else:
		print("BYE, BRO!")

if __name__ == '__main__':
	main()