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: ['6515', '5525', 'o', 'Q', '9049', 'f', 'p', 'X', '2057', 'h', '7585', '3617', '7817']

Output: 42165


Input: Consider Input: ['8665', '6083', '9819', 'H', 'p', 'S', 'R', '4311', 'R', '7193']

Output: 36071


Input: Consider Input: ['1351', '1465', '3045', '6799', '2895', '3539', 's']


Output: 19094