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: ['2151', '7511']

Output: 9662


Input: Consider Input: ['901', 'X', 'W', 'D', 'm', 'M', '59', '4855', '6523', 'R', '9781', '8271', '4449', '2221', '8391']

Output: 45451


Input: Consider Input: ['2215', '4369', 'e', '4979', '4069', 'J', 'L', '789', 'w', 'p', '9533', '8523', '2531']


Output: 37008