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:
['7973', 'J', '9035', 'H', '4051', '2661', 's', 'z', '8225', 'M', '4153']
answer:
36098


question:
['i', 'w', '8117', '2823', 'C', 'x', 'w', '5959', 'g', 'e', 'L', 'V', 'i', 'w', 'n']
answer:
16899


question:
['6269', '4251', 'r', 'N', 'n', '3187', '2657', 'o', '4859', '4287', 'q', '9683', '8485', '2717', '5321']
answer:

51716