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: ['a', 'f', '2185', 'N', '6381', '6429', '7499', 'd', '757', 'k', 'k', 'b', 'N', '2697', 'A', '8037']

Output: 33985


Input: Consider Input: ['v', '4119', 'I', '475', 'd', 'L', '909', 'F', 'V', '775', 'k', 'A', '9411', '8383', 'W', '1521', 'z', 'j', '7057', 'I']

Output: 32650


Input: Consider Input: ['9695', '7309', 'U', '857', '4825', '7477', 'H', '7863', '3945', 'j', 'v', 't', '4795']


Output: 46766