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: ['83', 'k', 'p', 'o', 'b', '7819', '2089', '4141', 'c', 's', '6045', '6783', 'J', 'B', 'x', 'O', 'X', '9693']

Output: 36653


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: ['3657', 'b', 'b', '5007', '6537', 'q', 'y', 'c', 'U', 'N', '3657', '3111', '2849', 'a', '905', 'T', '8145', 't', '3577', '1791']


Output: 39236