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: ['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']

Output: 18610


Input: Consider Input: ['6833', 'R', '7323', 'd', '3487', '8777', '9053', 'y', 'i', 'O', '467', 'b', '5969', 'D', 'B', 'r', '3073', 'i', 't', 'd']

Output: 44982


Input: Consider Input: ['e', 'y', 'K', 'h', '6449', '3987', 's', '5175', 'W', 'I', '9389', 'l', '9911', 'A', 'Y']


Output: 34911