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: ['2225', '1925']

Output: 4150


Input: Consider Input: ['6217', 'A', '1925', 'o', '1433']

Output: 9575


Input: Consider Input: ['1237', 'J', '6047', '6721']


Output: 14005