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.

['187', 'J', 'l', 'p', '1009', 'g', '5817', 'V', 'B', 'Z', '3329', '9253']
19595

['2325', '3259', '1947', '8065', 'H', '2329', 'h', 'l', 'k', 'R']
17925

['p', 'u', '7761', 'Y', '9115', 'g', 'L', '2687', 'A', 'y', '127', '4377', '125', '2537']

26729