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: ['q', '6631', 'b', '4207', '7523', '9853', '9203', 'P', '5029', 'b', '2319', '4717', '2485']

Output: 51967


Input: Consider Input: ['191', 'R', 'Q', '7809', '4851', 'b', 'e', 'H', 'E', 'I', 'r', 'A', 'g', 'e', 'g', 'I', 'j', 'f', '7287']

Output: 20138


Input: Consider Input: ['K', '3781', '35', '1613', 'x', 'E', '1487', 'C', 'k', '3243', '6279', 'C', '8269', 'r', '9351', 'j']


Output: 34058