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.

Q: ['3809', '9401', '63', '5705', 'u', '6275', 'k', 'l', '1171', '9365', 'L', 'O', '7431', '8567', 'h', '6135']

A: 57922
****
Q: ['8361', '6757', '5341', '2597', '9803', 'a', 'd', '5889', '9823', 'd', '7947', 'y', 'p']

A: 56518
****
Q: ['5031', '4295', 'a']

A:
9326
****