Welcome. In this kata, you are asked to square every digit of a number and concatenate them.
For example, if we run 9119 through the function, 811181 will come out, because 9^(2) is 81 and 1^(2) is 1.
**Note:** The function accepts an integer and returns an integer
def square_digits(num):
    return int(''.join([str(n * n) for n in map(int, str(num))]))
def square_digits(num):
    return int(''.join([str(n * n) for n in map(int, str(num))]))