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: ['s', '407', '7983', '1523', '8983', '9841', 'p', 'y', 'N', '7633', 'T', '4177', 'Z', 'Y', '3223', '7125', '2601', '7467', '3039']

Output: 64002


Input: Consider Input: ['3575', '8877', '3231', 'v', '9083', '317', 'M', '8975', 'x', 'F']

Output: 34058


Input: Consider Input: ['1923', '1901', '8951', 'z', 'J', '1365', '655', 'A', 'i', 'V', 'z', 'z', '179', 'h', '1917', 'N', 'O', '7275', '7037', 'S']


Output: 31203