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: ['1001', 'T', 'w', 'f', 'Q', '4035', 'b', 'q', 'x', 'R']

Output: 5036


Input: Consider Input: ['9403', '2607', 'G', '7901', 'K', '7967', 'a', 'n', '1967', 'x', 'g', '1081']

Output: 30926


Input: Consider Input: ['373', '2785', 'o', '3069', 'S', 'Q']


Output: 6227