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: ['V', 'h', '5549', 'K', 's', '8337', 'Y', '497', 'z', 'T', '4467', '6333', 'M', '1573', 'y', 'O', '5499', 's', 't', '6205']

Output: 38460


Input: Consider Input: ['4401', 'p', 'V', 'l', 'H', '7329', 's', '4717', 'l', '1773', '67', '179', 'l', '6991', 'a', '9377']

Output: 34834


Input: Consider Input: ['r', '8639', '945', 'P', '905', '707', '2159', 'x', '4479', 'e', '3853', 'n', '7455', 'k', 'o', '3065']


Output: 32207