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:
['Q', '8317', '8989']
answer:
17306


question:
['T', '721', '6555', 'g', 'y', 'U', '3053', 'A', '9663']
answer:
19992


question:
['1295', 'T', '881', '1713', 'd', '7789', '5835', '3091', '5471', '4409', '1079', '5785', '7477', '9455']
answer:

54280