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: ['5899', '229', 'm', '3347', 'k', 'q', 'g', '2755', '8727', '2035', '823', '6835', '9271', 'Q']

Output: 39921


Input: Consider Input: ['d', '4553']

Output: 4553


Input: Consider Input: ['3939', '6671', 'X', 'g', '6185', 'I', '6749', '2595', '9239', '6139', 'V', '9859', '5023', 'H', '7839', 'k', '6187', '1729', 'u']


Output: 72154