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.

['G', 'o', 'g', 'I', 'S', '9193', 'G', 'C', '2481', '435', 'm', '1005', '5605', '6501', 'D']
25220

['f', 'F', 'E', '2279', 'r', '6419', 'd', 'M', '3975', '3797', '9201', 'F', 'c', '4753', '959', 'v', '8963', '4007']
44353

['x', 'S', '4937', '1537', '8873', 'S', '927', '8081', 'D', 'N', 'U', 'Q', '2303', 'w', 'x']

26658