instruction:
In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.
question:
['773', 'e', '4451', 'S', 'I', 'r', 'e', 'V', 'Q', 'g', 'J', 'L', '7655', 'O']
answer:
12879


question:
['9989', 'B', 'E', '5181']
answer:
15170


question:
['R', 'l', 't', 'O', '2277', '9127', 'q', '1151', 'y', '4615', 'k', '4725', 'A', '4561', '4277', 'b', '3293', 'v', '6191', '7791']
answer:

48008