# This is the function definition
def print_stuff():
    print("This will print")
    return # Return ends functions
    print("This won't print")

# They'll only print if we actually run print_stuff instead of just defining it

# This is a function call
print_stuff()
# We'll call it three more times!
print_stuff()
print_stuff()
print_stuff()

def return_two_things():
    return 7, 8

x, y = return_two_things()
print(x, y)

def no_return_two_things():
    return 7
    return 8 # Won't run this

print(return_two_things())
print(no_return_two_things())

def square_less_than_8(tosquare):
    if tosquare >= 8:
        print("Number too big!")
        return 0
    return tosquare**2