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:
['6001', '6423', '5591', '8721', 't', 'x', '3723', 'E', 'F', '7353', 'b']
answer:
37812


question:
['2225', '1925']
answer:
4150


question:
['7925', '9941', '2543', '5927', 'm', 'e', 't', 'D', '7599', 'x', '7729', 'p', 'r']
answer:

41664