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:
['29', 'N', '5061', '7191', 'z', '8367']
answer:
20648


question:
['q', 'I', 'E', 'M', 'T', 'i', '8719', 'r', 'V', '9759', 'I', '1793', 'Q', 'P', '5263', 'I', 'O', '8603', 'y']
answer:
34137


question:
['3353', '107', '7043', '8049', '1711', '3421', 'T', '4275', 'e', '177', '1383', 'J', 'F', '1087', 'L', 'u', '8725', '29', '615']
answer:

39975