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: ['e', 'K', 'A', 'V', '1169', 'n', '8729', 'V']

Output: 9898


Input: Consider Input: ['6577', 'Q', '6865', '7671', 'N']

Output: 21113


Input: Consider Input: ['8665', '6083', '9819', 'H', 'p', 'S', 'R', '4311', 'R', '7193']


Output: 36071