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: ['9125', '1443', '2303', 'O', '8463', '401', '3983', 'g', '4327', 'z', 'n', 'F', 'Q', 'j', '9885']

Output: 39930


Input: Consider Input: ['7215', 'd', 'q', 'k', '9301', 'P', 'x', 'C', 'g', 'e', 'o', '2769', '6993', '9769', 'v', '9007', '4131', '8627', 'q']

Output: 57812


Input: Consider Input: ['l', 'Q']


Output: 0