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: ['1969', 'm', 'Y', 'N', '7331', 'J', 'b', '2485', 'x']

Output: 11785


Input: Consider Input: ['Z', '4157', '5185', 'U', 'i', '1115', 'A', '7427', '3313', 'S']

Output: 21197


Input: Consider Input: ['6079', 'D', 'u', '1205', 'O', 'M', '4155', 'E', 't', 'C', '5579', '8473', '9727', '2299']


Output: 37517