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:
['m', '4645', '711', 'l', '5085', '8989', '2387', 'n', 'V', '1613', '4011', '3261', 'p', 'X', '349', 'e']
answer:
31051


question:
['4161', 'E']
answer:
4161


question:
['N', 'P', 'w', 'A', '1925', '4699', '4907', 'a', '711', '2261', 'J']
answer:

14503