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:
['2895', '8095', 'y', '1927', '4827']
answer:
17744


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


question:
['w', 'w', '5861', '9453', 'D', '4563', '5017', '2173', '4495', '6685', '2049']
answer:

40296