# funtion

def square(num):
	return num * num

def sayHi():
	print ("Hello htere perple")
	print ("Today is great")
	print ("Enjoy the weekend!")
	message = "Life is great!"
	
def main():
	print (square(3))

	sayHi()
	sayHi()

main()
print("Goodbye")
message = "yo"
print(message)
