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:
['6217', 'A', '1925', 'o', '1433']
answer:
9575


question:
['a', 'f', '2185', 'N', '6381', '6429', '7499', 'd', '757', 'k', 'k', 'b', 'N', '2697', 'A', '8037']
answer:
33985


question:
['3931', '7483', 'R', 'H', 'Q', 'S', 'C']
answer:

11414