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:
['2325', '3259', '1947', '8065', 'H', '2329', 'h', 'l', 'k', 'R']
answer:
17925


question:
['V', 'O', '1309', 'm', '9333', '8283', 'Z', 'K', 'X', 'w', '9855', '9075', '2013', '8485', '9973', '8779']
answer:
67105


question:
['1141', '1963', '1605', 'l', 'R', '8591', 'T', '6707', 'h']
answer:

20007