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:
['8147', '3191']
answer:
11338


question:
['o', '8089', '2159', '943', '1255', 'w', 'Y', '3723', 'n', '7767', '2209', 'F', 'c', 'J', '5259', '4427', 'n', 'U']
answer:
35831


question:
['371', '1195', 'R', 'E', 'o', '1475', 'p', 'u', '2273', 'z', '1081']
answer:

6395