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: ['1693', '9237', '7591', '1593', 'R', '6295', '9379']

Answer: 35788


Question: ['X', '6189', '5435', 'y', '8931', '8987', 'F', '8377', 'k', '8631', '8717', 'q', '2923', 'g', '7225', 'j']

Answer: 65415


Question: ['j', 'G', 'f', 'l', '7799', 'o', '5343', 'a', '9193', 'j', 'l', 'r', 'N', '2863', 'W', 'd']

Answer:
25198