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: ['J', '5149', 'H', 'L', 'm', 'h', '3863', 'n', 'z']

Output: 9012


Input: Consider Input: ['y', 'p', '3553', '2155', 'b', 'R', 'j', 'V', 'U']

Output: 5708


Input: Consider Input: ['O', 'O', '2167', '4355', 'n', '1121', '5307', 'V', 'Y', 'v', 'F', 'x', '8065', 'O', '1819', 'X']


Output: 22834