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


question:
['1693', '9237', '7591', '1593', 'R', '6295', '9379']
answer:
35788


question:
['2355', 'F', 'c', '3411', 'm', 'J', 'W', '5091']
answer:

10857