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: ['W', '8593', '9427', '9931', '8919', 'X', 'B', '8861', '1933', 'Z', 'V', '3427', 'S', '8717', 'd', '1593', '7659', 'Q', 'n']

Output: 69060


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', '1883', '5069', '9951', 'Q', 'x', 'x', 'c', '9689', 'i', 'e', '4311']


Output: 30903