<gh_stars>0
def my_add(a, b):
    return a + b


def my_sub(a, b):
    return a-b


def my_mul(a, b):
    return a * b


def my_div(a, b):
    return a / b


def my_exp(a, b):
    return a**b






def my_add(a, b):
    return a + b


def my_sub(a, b):
    return a-b


def my_mul(a, b):
    return a * b


def my_div(a, b):
    return a / b


def my_exp(a, b):
    return a**b