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:
['A', '6323', 'T', 'H', 'M', 'S', 'D', 'r', 'v', '8169', '7649', '5149', 'x', '6275']
answer:
33565


question:
['6293', 'o']
answer:
6293


question:
['4811', 'Q', '2289', 'N', 'I', '7681', 'z', '8179', '3359', '5299', 'R', 'z', '8697', '5781', '4803', '2715', '6511', '1371']
answer:

61496