# Task:
# Write a function that accepts two integers and returns the remainder of
# dividing the larger value by the smaller value.
#
# Division by zero should return an empty value.
#
# Examples:
# n = 17
# m = 5
# result = 2 (remainder of `17 / 5`)
#
# n = 13
# m = 72
# result = 7 (remainder of `72 / 13`)
#
# n = 0
# m = -1
# result = 0 (remainder of `0 / -1`)
#
# n = 0
# m = 1
# result - division by zero (refer to the specifications on how to handle this
# in your language)

def remainder(a, b):
    if min(a, b) == 0:
        return None
    elif a > b:
        return a % b
    else:
        return b % a
