7 kyu Square Every Digit.py

"""
https://www.codewars.com/kata/546e2562b03326a88e000020/train/python

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 92 is 81 and 12 is 1.

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


def square_digits(n):
    num = ''
    
    for i in str(n):
        num += str(int(i) ** 2)
        
    return int(num)