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: ['Y', 'X', 'd', 'N', '1877', '2865', 'M', '1249', '9385', 'v', 'o', 'P', 'P', '6029']

Output: 21405


Input: Consider Input: ['2215', '4369', 'e', '4979', '4069', 'J', 'L', '789', 'w', 'p', '9533', '8523', '2531']

Output: 37008


Input: Consider Input: ['X', '2137', '3911', 'Y', 'T', 'B', '6009', 'l', '9913', '8149', '5943', '5083', '2523', '7039', 'w', '1901', '6273', 'j', 'v']


Output: 58881