#name = input("Enter your name:")
#print('My name is', name)

'''ADDRESS_NUMBER = 15
ADDRESS = 'Tallinn'
print('My address is', ADDRESS, ADDRESS_NUMBER)'''

'''a = 5
A = 15

if a is A:
	print("True")
else:
	print("False")'''

a = 10
b = 20
def sum():
	print(a + b)
sum()