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: ['1869', 'q', '5919', 'D', '7733', '2641', 'h', '1327']

Answer: 19489


Question: ['3107', 'D', '9595', '8807', 'Q', 'o', 'T', 'N', 'A']

Answer: 21509


Question: ['c', 'X', 'N', '1725', '6589', '7655', '8981', 'V', '7849', '8775', '769', 'i', '2691', '9987']

Answer:
55021