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: ['4241', 'E', '1807', '2877', '5125', '7625', 'S', '401', '5081', 'u', 'R', 'F']

Output: 27157


Input: Consider Input: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']

Output: 14354


Input: Consider Input: ['O', 'K', 's', 'V', '6815', 'c', '9277', 'V', '1783', 'b', 'i', '2045', 'E', 'E', '2035']


Output: 21955