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: ['S', 'W', '2171', '6405', 'h', 'C', '1597', '7109', 'Q', 'p', '2747', 't', 'J', 'q', '1883', 'v', 'O']

A: 21912
****
Q: ['6161', 'p', '2839', 'c', '5905', '1729', 'j', '5901', '3013', 'e']

A: 25548
****
Q: ['H', '8117', 'D', 'I', '8213', 'y', '5051', '1627', '1099', 'y', '2469', 'h', '6517', '8807', '4047', '4597', '6531', 'j']

A:
57075
****