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

A: 19595
****
Q: ['2325', '3259', '1947', '8065', 'H', '2329', 'h', 'l', 'k', 'R']

A: 17925
****
Q: ['w', 'U', 'o', '891', 'k', 'O', '2747', '4891', 'Y', '3563', '5205', 'o', 'o', '871', 'f', 'J', '3271', '759']

A:
22198
****