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:
['I', '1941', '2423', '3381', 'J', '6589', 'h', 'D']
answer:
14334


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


question:
['z', '1937', '2883', 'A', '7731', '7303', 'i', '3389', '2533', '1743', '6521', 'J', 'N']
answer:

34040