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:
['1001', 'T', 'w', 'f', 'Q', '4035', 'b', 'q', 'x', 'R']
answer:
5036


question:
['1057', '3937']
answer:
4994


question:
['c', '1657', '8523', '387', 'I', '8519', '6369', 'b']
answer:

25455