def one():
    return "January"


def two():
    return "February"


def three():
    return "March"


def four():
    return "April"


def five():
    return "May"


def six():
    return "June"


def seven():
    return "July"


def eight():
    return "August"


def nine():
    return "September"


def ten():
    return "October"


def eleven():
    return "November"


def twelve():
    return "December"


def numbers_to_months(argument):
    switcher = {
        1: one,
        2: two,
        3: three,
        4: four,
        5: five,
        6: six,
        7: seven,
        8: eight,
        9: nine,
        10: ten,
        11: eleven,
        12: twelve,
    }
    # Get the function from switcher dictionary
    func = switcher.get(argument, lambda: "Invalid month")
    # Execute the function
    print(func())


numbers_to_months(2)
numbers_to_months(20)