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: ['9211', '1889', '7371', '9649', 'b', 'y', 'q', 'a', 'i', '1137', '3291', '8625']

Output: 41173


Input: Consider Input: ['D', 'm', 'P', '2433', '6731']

Output: 9164


Input: Consider Input: ['E', 'N']


Output: 0