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: ['8871', '1297', 'W', 'f', 'Y', '8731', '113', '6707', '379', '9631', 'X', 'C', 'q']

A: 35729
****
Q: ['2151', '7511']

A: 9662
****
Q: ['4933', 'Z', '467', '1255', 'W', 'O', '4943', 's', '599', '8495', 'E', 'x', 'Y', 'C', '9193', '4155', 'n', 'b']

A:
34040
****