""" 7kyu
Welcome. In this kata, you are asked to square every digit of a number.

For example, if we run 9119 through the function, 811181 will come out, because 92 is 81 and 12 is 1.

Note: The function accepts an integer and returns an integer
"""

def square_digits(num):
    numstr = ""
    for i in str(num):
        x = int(i) ** 2
        numstr += str(x)
    return int(numstr)
