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: ['4463', '489']

Output: 4952


Input: Consider Input: ['773', 'e', '4451', 'S', 'I', 'r', 'e', 'V', 'Q', 'g', 'J', 'L', '7655', 'O']

Output: 12879


Input: Consider Input: ['9617', 'o', 'i', 'W', '5459', 't', 'E', 'K', 'T', '7465', 'T']


Output: 22541