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: ['G', 'o', 'g', 'I', 'S', '9193', 'G', 'C', '2481', '435', 'm', '1005', '5605', '6501', 'D']

Answer: 25220


Question: ['G', 'e', 'R', '4427', '3401', '3065', 'I', '2781', '6829', '5261']

Answer: 25764


Question: ['9629', 'O']

Answer:
9629