class Solution:

     def addToArrayForm(self, A, K):

         i = len(A) - 1

         while i >= 0 and K > 0:

             A[i] += K

             K = A[i] // 10

             if A[i] >= 10:

                 A[i] %= 10

                 if i == 0:

                     A = [0] + A

                     i += 1

             i -= 1

         return A
         

 class Solution:

     def addToArrayForm(self, A: 'List[int]', K: 'int') -> 'List[int]':

         lenA = len(A)

         KS = str(K)

         lenB = len(KS)

         B = list()

         maxlen = 0

         if lenA > lenB:

             maxlen = lenA

             dis = lenA - lenB

             for i in range(dis):

                 B.append(0)

         elif lenA < lenB:

             maxlen = lenB

             dis = lenB - lenA

             for i in range(dis):

                 A.insert(0,0)

         else:

             maxlen = lenA

         for i in range(lenB):

             B.append(int(KS[i]))

         I = 0

         R = list()

         maxpotion = maxlen - 1

         while maxpotion >= 0:

             C = A[maxpotion] + B[maxpotion] + I

             if C >= 10:

                 I = 1

                 C = C % 10

             else:

                 I = 0

             R.insert(0,C)

             maxpotion -= 1

         if I == 1:

             R.insert(0,1)

         return R