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: ['3051', 'Z', 'q', 'u', 'x', '2747', 'e', 'B', '4225', 'Q', 'R', '4629', 'F']

A: 14652
****
Q: ['6645', 'k', '4879', 'N', '113', 'L', 'x', '8365', 'v', 'A']

A: 20002
****
Q: ['3113', '3425', '367', '5957', 'F', 'V', '909', 'S']

A:
13771
****