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: ['q', 'U', 'I', '5245', 'g', 'Y', 's', 'V', 'b', 'V', 'D', '1193', 'p']

Output: 6438


Input: Consider Input: ['e', 'K', 'A', 'V', '1169', 'n', '8729', 'V']

Output: 9898


Input: Consider Input: ['q', '4395', '9889', '8235', '287', 'y', '5901', '3235', '6461', 'M', '1973']


Output: 40376