# What does the following code print ?
# Trace through the code by hand and then check your answer
# with http://www.pythontutor.com/visualize.html#mode=edit

def func1(x, y, lis):
    x = 5
    lis.append(x)
    lis.append(y)
    print(lis)
    lis = []
    return lis


def func2(x, y, lis):
    print(lis)
    print(x / y)
    print(int(x) / int(y))


def func3(lis):
    print(lis)
    return lis


def main():
    lis = [1]
    print(lis)
    lis.append([1])
    print(func1(2, 3, lis))
    lis = func1(4, 5, [9])
    print(lis)
    print(func2(1.0, 2, lis))
    func2(3, 4, lis)
    print(func3(2))
    print(func3([4, 5]))
    print(lis)


main()