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: ['95', '279', 'y', 'p', '5083', 'X', 'E', '3817']

Output: 9274


Input: Consider Input: ['W', '4453', '5895', 'Z', 'A', '7663', '2749', 'f', 'H', '6917', '1215', 'M', '1775', '5397', 'l', '8197', '5209', '8229', 'U']

Output: 57699


Input: Consider Input: ['u', 's', '2461', '8479', 'h']


Output: 10940