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.

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

Output: 63977


Input: Consider Input: ['c', 'r', 'R', 'a', '6915', 'C', '3651', 'j', 'L', '9761', '2923', 'Z', 'e', '833', 'W', '1867', 'G', 'H', 'T']

Output: 25950


Input: Consider Input: ['z', '1359', '3729', '5999', '205', '2507', '4101', '2989', 'I', '4463', 'r', 'l', 'B', 'x', 'f', '971', 'e']


Output: 26323