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.

['W', '3629', '6053', '1035', '1717', 'n', 'y', '9585', 'D', '5125', 's', '9801', '2905', 'E', '5797', 'T']
45647

['1709', 'S', 'w', '7725', 'Z', '7755', '8081', '897', 'N', '4449', 'F', 'F', 'M', 'y', 'B', 'h', 's', 'l', 's', '415']
31031

['4101', 'q', '2007', '473', '5071', 'a', 'O', '5565', '9199', '9535', 'J', 'D', 'O', 'I', '31', '5019', 'L', '2979', 'a']

43980