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: ['83', 'k', 'p', 'o', 'b', '7819', '2089', '4141', 'c', 's', '6045', '6783', 'J', 'B', 'x', 'O', 'X', '9693']

A: 36653
****
Q: ['1057', '3937']

A: 4994
****
Q: ['8839', 'j', 'u', '8759', 'j', 'H', '8805', '2869']

A:
29272
****