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: ['D', '1611', 'w', '8825', '8987', '3021', '9019', 's', '87', '9283', '5717', 'f', '1503', '6593', '8533', '785', 'g']

Output: 63964


Input: Consider Input: ['8809', '4559', '2715', 'w', '9903', 'h', 'u', 'F', '9369', '6149']

Output: 41504


Input: Consider Input: ['3081', 'Y', 'j', '9291', '7043', '2681', '5395', 'f']


Output: 27491