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: ['3215', 'h', '9133', '2771', 'F', 'x', '9033', '709', 'q']

Output: 24861


Input: Consider Input: ['K', 'p', '97', 'R', '2999', 'u', '7307', '6033', '6431', 'm', 'T']

Output: 22867


Input: Consider Input: ['4401', 'p', 'V', 'l', 'H', '7329', 's', '4717', 'l', '1773', '67', '179', 'l', '6991', 'a', '9377']


Output: 34834