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: ['A', '9785', '1739', 'x', '2389', 'O', 'J', '1407', '9067', 'x', '9747', '2485', '4631', '6021', '4077', '2779', 'V', '2449', '7401']

Answer: 63977


Question: ['3451', '2325', '2511', 'i', '6159', '2291', 'e', 'l', 'P', '1177', 'o', 'T']

Answer: 17914


Question: ['4255', 'T', 'F', 'b', '1165', '809', '6093', '4999', '7195', '9729', 'S', '231', '5983', 'O']

Answer:
40459