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:
['s', '3607', 'p', 'P', '9285', 'J', 'l', '9863', '9823', '2817', 'g', '9751', '599', '2605', 'k', 'Y', 'O', 'U', '9649']
answer:
57999


question:
['U', '5885', 'u', 'Y', 's', 'w', 'j', '9629', '9505', 'U']
answer:
25019


question:
['l', 'y', 'K', '2091', '8035', 'j', '7957', 'w', '525', 'A', '7981', '9101', '1941', '7435', 'j', '2875', 'z', '4431', '5713']
answer:

58085