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: ['h', '6937', 'U', 'f', 'S', 'm', '9699', 'E', '4559', 'p', 'Z', 'o', '6409', 's', '4537', '5135', '6901', '6489', '5833', 'l']

Output: 56499


Input: Consider Input: ['S', 'D', '3101', '4967', '8197', '5025', '4257', 'S', 'X', '7641', 'n', '6775', '4719', 'o', '2821', 'x', '5605', '2181']

Output: 55289


Input: Consider Input: ['d', '7619', '7311', 'S', '3797', 'Y', '5053', 'P', '6303', '3119', '4865', 'y', 'N', 'U', 'Z', '3771', '265', 'c', '991']

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: 43094


