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: ['e', '9777', '1835', 'N', '2425', '1427', 'o', '4459', '9961', '3285', '5199', 'x', 'e', '7727']

Output: 46095


Input: Consider Input: ['o', 'a', 'K', '6031']

Output: 6031


Input: Consider Input: ['m', '6049', '1417', '799', '9483', 'C', '4515', '1203', 'n', '5795', '7995', 't', 'U', 'z', '445']


Output: 37701