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: ['8529', '2657', '1599', 'b', '8187', '7005', '7481']

Output: 35458


Input: Consider Input: ['y', 'R', 'b', 'v', 'm', 'H', '9903', '8689', 'D', '1023', 'a', '233', '1833', 'o', 'n', 'm', '5531']

Output: 27212


Input: Consider Input: ['T', '9415', '755', 'U', '6603', 'g', '9453', 'M', '9119', 'S', '5585', 'v', '5635', 'M', 'I', 'g']


Output: 46565