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]: ['x', '9895', 'r', 'H', 'C']
[A]: 9895


[Q]: ['2335', '5135', 'K', 'v', '2979', 'W', 'G', 'a', 'F', '4273', '2623', '2103', 'T', '3389', 'Q']
[A]:
22837