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: ['1147', 'f']

Output: 1147


Input: Consider Input: ['2625', '1611', 'E', '4507', '3013', '1569', 'M', '2607', '1111', 'W']

Output: 17043


Input: Consider Input: ['E', 'U', 'p', 'p', '1419', 'C', 'u', '4225', 'u', 'c', 'y', '7009', '5883', '7135', '2563']


Output: 28234