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.

['g', 'A', 'm', '4005', '8079', 'G']
12084

['8361', '6757', '5341', '2597', '9803', 'a', 'd', '5889', '9823', 'd', '7947', 'y', 'p']
56518

['J', '177', '8449', '2067', 'a', 'G', 'p', 'd', '5161', 'M', '2403', '5541', 'q', '4375', 'O']

28173