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.

['2625', '1611', 'E', '4507', '3013', '1569', 'M', '2607', '1111', 'W']
17043

['q', '8155', 'L', 'v', '2657', 'X', 'v', '2353', '151', 'R', '967', '4327']
18610

['Z', '4989', 'O', 'q', 'Q', '931', 'k', 'F', '831', '5561']

12312