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: ['Y', '8169', '9067']

Output: 17236


Input: Consider Input: ['9509', 'o', 'l', '9873', 'h', 'N', '2059', '8595', 'D', 'L', '5913', 'o', '1443', 'C', 'y', 'K', 'J', 'a', 'X', 'E']

Output: 37392


Input: Consider Input: ['9929', '3025', 'Y', 'p']


Output: 12954