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"""
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(num):
    square = [str(int(i) ** 2) for i in str(num)]
    return int(''.join(square))


print((square_digits(9119)))
