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:
['L', 'i', '9225', 'w', '5365', '8077', '2733', 'W', '8493', 'B']
answer:
33893


question:
['2087', '8171', 'c', 'd', 'a', '5621', 'n']
answer:
15879


question:
['9429', '9495', '8619', 'W', 'q', 'E', '8957', 'p', '4415', 'R', '9205', '5615', '2295', 't', '1151', '1651']
answer:

60832