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: ['s', '425', '6135']

Output: 6560


Input: Consider Input: ['N', '1337', 'C', 'T', '863', 'j', '2369', 'P', 'A', 'x', '5725', '2333', 'Q', '9149', 'Q', '8529', 'N']

Output: 30305


Input: Consider Input: ['P', 'J', '9627', 'j', 'V', 'T', '5221', '435', 'D', 'c']


Output: 15283