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

Output: 13717


Input: Consider Input: ['5899', '229', 'm', '3347', 'k', 'q', 'g', '2755', '8727', '2035', '823', '6835', '9271', 'Q']

Output: 39921


Input: Consider Input: ['j', 'w', 'M', 'D', '2163', '9527', 'r', 'u', '8329', 'F', 'T', 'Q', 'S', 'y', 'k', '2693', 'N']


Output: 22712