instruction:
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.
question:
['X', '989', 'U', '9551', '6385', 'Y', '1433', 'J', '1833', '685', 'u']
answer:
20876


question:
['h', '6937', 'U', 'f', 'S', 'm', '9699', 'E', '4559', 'p', 'Z', 'o', '6409', 's', '4537', '5135', '6901', '6489', '5833', 'l']
answer:
56499


question:
['W', '6501', 'Y', 'p', '2203', 'h', 'M', 'T', '2323', '93']
answer:

11120