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: ['Q', 'v', 't', '223', 'm', 'l', 'c', 'M', 'b', '2227', 'P', 'e', 'n', 'f', 'S', '2205', '3517', '5545']

Output: 13717


Input: Consider Input: ['X', '1259', '4923', '9977', 'D', '9025', '6521', '6543', 'c', 'Q', '9331']


Output: 47579