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.

['1123', '2765', '9395', '9695', '7963', '3813', '9987', 'y', 'N', 'F', '2757', 'o', 'r', '4827', '3523', 'G', 'j', '9785', 'C']
65633

['3873', 'D', 'J', '2799', 'k', 'F', 'I', '3457', '5647', '4815', '7509', 'Y', '1251', '2211']
31562

['4933', 'e', '5721', '6739', 'Y', '6801']

24194