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: ['d', '6851', 'o', '5521', 'l', '3911', 'w', '1005', 'e', '3323', 'r', '7311', '4377']

Output: 32299


Input: Consider Input: ['4161', 'E']

Output: 4161


Input: Consider Input: ['i', 'j', 'u']


Output: 0