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:
['5233', 'i', 'Z', 'v', '4531', 'j', '61', '1725', '5915', '1677', 'F', 'K', 'M', 'Z']
answer:
19142


question:
['5947', 'n', '9431', '7629', '7643', 'N', '141', '2353', 'l', 'F', '9665', '9489', 'X', '4905', 'H', 'L', '985']
answer:
58188


question:
['2281', '9627', '1939', '9073', 'j', 'P', '737', 'S', '6355', 'a', 'l', '2557', 'D', '5815', 'X']
answer:

38384