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:
['W', '3629', '6053', '1035', '1717', 'n', 'y', '9585', 'D', '5125', 's', '9801', '2905', 'E', '5797', 'T']
answer:
45647


question:
['8013', 'E', '4749', '9437', '1999', 'D', 'n', 'X', '4457', '3581', 'O', 'M', 'L', '7715', 'f', 'Y', '6123']
answer:

46074