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:
['G', 'o', 'g', 'I', 'S', '9193', 'G', 'C', '2481', '435', 'm', '1005', '5605', '6501', 'D']
answer:
25220


question:
['t', 'v', 'B', 'Y']
answer:
0


question:
['5619', '3275', 'O', '2957', '411', 'k', '6129', 'i', 'R', 'X', 'w', '2643', 'G']
answer:

21034