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: ['4159', 'H', 'h', 'W', 'w', 'i', 'G', 'l', 'j', '5467', '9219', 'j', 'q', 'n', '5465', '6197', 'J', 'y']

Output: 30507


Input: Consider Input: ['2923', '3573', '6179', '7673', '6551', 'B', '315', '5169', 'm', '9405', 'm', 'Z']

Output: 41788


Input: Consider Input: ['B', '5427', '4903', 'B', '7657', '9053', '4445', 't', '9011', '7549', 'y', 'M', 'h', 'h', 'F', 'w', 'Q']


Output: 48045