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', '8035', 'J', '2671', '7509', '1573', '6915', '8569', '345', 'T', 'P', 's', '1341', '7823', '8671', 'm', 'Q', 's', 'N']
53452

['1965', '8127', 'x', '4981', '8077', 'O', '467', '701', 'V', 'm', 'y', '5989', '123', 't', '4019', 'j', '1827', '8799']
45075

['C', '8459', '6731', 'D', '4359', 'C', 'X', '7083', 'a', '4391', '9719', '3011', 'K', '3445', 'X', '5885']

53083