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: ['q', 'U', 'I', '5245', 'g', 'Y', 's', 'V', 'b', 'V', 'D', '1193', 'p']

A: 6438
****
Q: ['X', '989', 'U', '9551', '6385', 'Y', '1433', 'J', '1833', '685', 'u']

A: 20876
****
Q: ['y', '1463', 'm', 'X', 'T', 'W', 'R', 'K', 'W', '6665', '5477', 'X', '3181', '771', 'O', '3341', '4723']

A:
25621
****