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: ['C', 'v', '1353', 'e', 'x', 'A', 'D', '1243', '477', 'z', '3483', '5213', 'k', 'm', 'n']

Output: 11769


Input: Consider Input: ['V', '8137', 'b', 'k', '2081', 'L', '9733', '7525', 'D', '2381', 'O']

Output: 29857


Input: Consider Input: ['2873', '3879', '2565', '3581', '1007', 'c', '7827', 'N', '69', '5349', '3583', '7021', 'R', 'o', 'E', '363']


Output: 38117