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: ['b', '5689', '119', 'p', 'P', 'J', 'w', 'm', '7397', 'Y', '447', 'O', 'p', '319', 'H', 'U']

Output: 13971


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

Output: 14354


Input: Consider Input: ['7899', '7877', '449', 'i', 'I', '5203', 'W', 'k', 'C', '459', 'f', 'O', '8045', 'm', 'x', '3831', '1981']


Output: 35744