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: ['8361', '6757', '5341', '2597', '9803', 'a', 'd', '5889', '9823', 'd', '7947', 'y', 'p']

Output: 56518


Input: Consider Input: ['3107', 'D', '9595', '8807', 'Q', 'o', 'T', 'N', 'A']

Output: 21509


Input: Consider Input: ['1485', '7923', '1485', '3319', 'a', '9483', '6237', 'v', 'n', 'j', 'i', '2645', 'd', 'X', 'T', '4503', '7735', 'q']


Output: 44815