The array-form of an integer num is an array representing its digits in left to right order.

For example, for num = 1321, the array form is [1,3,2,1].

Given num, the array-form of an integer, and an integer k, return the array-form of the integer num + k.

Example 1:

Input: num = [1,2,0,0], k = 34 Output: [1,2,3,4] Explanation: 1200 + 34 = 1234 

Example 2:

Input: num = [2,7,4], k = 181 Output: [4,5,5] Explanation: 274 + 181 = 455 

Example 3:

Input: num = [2,1,5], k = 806 Output: [1,0,2,1] Explanation: 215 + 806 = 1021 

Constraints:

1 <= num.length <= 10⁴

0 <= num[i] <= 9

num does not contain any leading zeros except for the zero itself.

1 <= k <= 10⁴

class Solution:

def addToArrayForm(self, num: List[int], k: int) -> List[int]:

Implementation in python3