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: ['l', '2511', '2071', 'o', 'F', '7583', '1909', '1859', '3299', '3853', 'h', 'P', 'P', '9175', 'B', 'F']

A: 32260
****
Q: ['j', 'f', '3831', 'B', 'D']

A: 3831
****
Q: ['f', '8107', '8419', 'w', '6189']

A:
22715
****