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:
['M', '9933', '9861', 'f', 'N', 'R', '7625', 'p', 'T']
answer:
27419


question:
['2749', 'w', 'k', 'r', 'b', '9243', 'e', '93', '5163', 'A', '6655', '7151']
answer:

31054