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.

Example input: ['238', 'h', '92', 'U', '2799']
Example output: 3129
Example explanation: Here, the numbers in the input list are '238', '92' and '2799', hence their sum (238+92+2799) is 3129.
Q: ['z', '4277', '9577', 'o', 'e', 'o', 'N', '1817', 'j', '6295', 'a', '4837', 'w', '6025']
A:
32828