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:
['U', '9593', '2079', '5959', 'T', '5849', 'w', 'b', '9743', '6689', 'k', 'J']
answer:
39912


question:
['5095', '8235', '4901', 's', '4177', '3077', 'l']
answer:
25485


question:
['X', '9701', 'E', '1031', '1941', 'Z', 'X', 'z', 'Z', 'V', 'S', 'q', '5693', 'w', 'W', 'i', '6191', 'U']
answer:

24557