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', 'C', '5373', '2017', 'm', '5435', 'Y', 'h']
answer:
12825


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


question:
['165', 'v', '5279', 'U', 'c', 'I', 'Q', 'l', 'R', 'X', 'G']
answer:

5444