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.

['m', '4645', '711', 'l', '5085', '8989', '2387', 'n', 'V', '1613', '4011', '3261', 'p', 'X', '349', 'e']
31051

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

['e', 'p', '6635', '423', '717']

7775