Codewars_25.py

https://www.codewars.com/kata/546e2562b03326a88e000020
#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. (81-1-1-81)
#Example #2: An input of 765 will/should return 493625 because 72 is 49, 62 is 36, and 52 is 25. (49-36-35)
#Note: The function accepts an integer and returns an integer.

int(''.join(list(map(lambda n: str(n*n),map(int,list(str(a)))))))