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: ['6217', 'A', '1925', 'o', '1433']

A: 9575
****
Q: ['l', 'B', 'Y', '7543', '5091', '1917']

A: 14551
****
Q: ['M', '6167', '3079', '2483', 'o', '161']

A:
11890
****