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

Answer: 19595


Question: ['3629', '8785', '9537', '8479', '3523', 'c', 'C', '5093', '2405', 'y', '1145', '8987', 'f']

Answer: 51583


Question: ['W', '6287', 'D', '1165', 'N', 'k', 'g', 'Y', 'A', 'm', '2541', 'm', 'W', '9927', 'D', 'K', '5865', '3553', '5223']

Answer:
34561