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:
['6217', 'A', '1925', 'o', '1433']
answer:
9575


question:
['4159', 'H', 'h', 'W', 'w', 'i', 'G', 'l', 'j', '5467', '9219', 'j', 'q', 'n', '5465', '6197', 'J', 'y']
answer:
30507


question:
['w', 'U', 'u']
answer:

0