def run_other_function(other_function):
	print other_function(16)

def cube(x):
	return x*x*x

def square(x):
	return x*x

run_other_function(cube)
run_other_function(square)

def give_function(choice):
	if choice == 1:
		return cube
	if choice == 2:
		return square
	else:
		return lambda (x): x*x*x*x

rv = give_function(1)
print rv(3)

print give_function(2)(5)
print give_function(3)(5)

print (lambda (x): x*2)(4)