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: ['1203', '6179', '9835']

A: 17217
****
Q: ['3877', '2685', 'f', 'r', 'q', 'o', 'k', 'i', '2299', '9075', 'X', '4303', '7379', '9205', 'V', '9655', 's']

A: 48478
****
Q: ['v', '4905', '711', 'O', 'i', 'F', 'G', '9207', '6411', '4901', 'l', 'L', 'B', 'C', 'O', 'X', 'R', 'd']

A:
26135
****