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.

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

Output: 56518


Input: Consider Input: ['3051', '5343', 'k', 'k', '6815', 'E', '4745', 'A', 'A', '1251', '6649', 'f', '4133', 'X']

Output: 31987


Input: Consider Input: ['W', 'T', '7041', '3009', 'd', 'M', 'c', '6451', '1187', '1335', 'n', 'G', '3619']


Output: 22642