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', 'o', '5363', '5937', 'x', '6705', 'w', '5495', 'E', '9823', 'F', '83', '8443', '5223']

Answer: 47072


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

Answer: 35831


Question: ['397', 'R', 'p', '3247', '1659', '2273', 'q', 'R', '5193', '3079', '8013', 'e', 'l', 'j', 'T']

Answer:
23861