"""
Script with simple functions in them
"""


def f1():
    """
    function 1
    :return: integer value of 25
    """
    val = 100
    val -= 75
    return val


def f2():
    """
    function 2
    :return: integer value of 50
    """
    val = 100
    sub = 50
    rez = val - sub
    return rez


def f3():
    """
    function 3
    :return: integer value of 75
    """
    val = 100
    sub = 25
    rez = val - sub
    return rez


def f4():
    """
    function 4
    :return: integer value of 100
    """
    val = 100
    sub = 0
    rez = val - sub
    ret = rez
    return ret
