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: ['1395', '3605', '6001', 's', 'h', 'T', 'K', 'X', '9413', 'X', '5099', 'c', 'f', 't', 'S', 'f', '4651']

Output: 30164


Input: Consider Input: ['K', 'O', 'p', '1669', '8647', '3417', 'a', '8903', 'V', 'E', 'l', 'a', '5177', 'J', '6559', '5377', 'X', '9427']

Output: 49176


Input: Consider Input: ['8361', 'J', 'i', '6521', '7101', '4793', 'n', '5219', '8787', 'w', '971']


Output: 41753