def add(num1, num2):
	return num1 + num2

def subtract(num1, num2):
	return num1 - num2

def multiply(num1, num2):
	return num1 * num2

def divide(num1, num2):
	return num1 / num2

def modulo(num1, num2):
	return num1 % num2

def power(base, exponent):
	return base ** exponent

def square(num):
	return num ** 2

aa = add(4, 5)
ab = subtract(9, 6)

print aa + ab

b = divide(12, 2)

print b - 60

c = add(1, 2)

print c + 3

d = add(1, 2)

print square(d)

e = modulo(3, 4)
eb = multiply(9, 9)

print divide(e, eb)

f = add(3, 8)

print multiply(7, f)

ga = add(1, 2)
gb = add(4, 5)

print ga - 3 * gb

h = add(2, 3)

print power(3, h)
