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:
['8743', 'Y', 'O', '8265', '1029', '5689', 'F', 'j', 'Z', 'i', 'S', '1285', '737']
answer:
25748


question:
['2923', '3573', '6179', '7673', '6551', 'B', '315', '5169', 'm', '9405', 'm', 'Z']
answer:
41788


question:
['B', 'C', 'W', 'N', '909', '647', 't', '3705', 'C', '203', '5631', 'g', 'e', 'T', 'Z', 'W', 'G', 'E', '6101']
answer:

17196