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.

['5829', '9755', '67', 'F', '6347', 'p', 'i', 'X', 'z', 'o', '2321', 'F', '6145', 'B', '3903']
34367

['6645', 'k', '4879', 'N', '113', 'L', 'x', '8365', 'v', 'A']
20002

['n', '549', 'N', 'V', '9883', '5101', '7041', 's', '8317', 'H']

30891