def example1():
    d = {"uno": [1, [1, 2, 3], 3]}
    print(d["uno"][5][2])


def example2():
    a, b, c, d, e, f = 1, 2, 3, 4, 5, 6
    print(a / b / c / d / e / f)


def example3():
    a = None
    b = ""
    print(a.capitalize() + b.capitalize())


example3()
