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:
['B', 's']
answer:
0


question:
['2237', '2597', '2593', 'Y', '5345', 'g', 'l', 'I', 'p', 'u', 'L', 'T', '617', '9759', 'b', 'w', '7097', '9863']
answer:
40108


question:
['6177', 'A', 'P', '7637', 'Z']
answer:

13814