def remainder_basic(dividend, divisor):
    return dividend - int(dividend / divisor) * divisor

def remainder_divmod(dividend, divisor):
    q, r = divmod(dividend, divisor)
    return r

def remainder_percent(dividend, divisor):
    return dividend % divisor

print(remainder_basic(10, 4))
print(remainder_divmod(10, 4))
print(remainder_percent(10, 4))