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.

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

A: 41788
****
Q: ['5233', 'i', 'Z', 'v', '4531', 'j', '61', '1725', '5915', '1677', 'F', 'K', 'M', 'Z']

A: 19142
****
Q: ['F', '2051', 'm', 'm', 'c', 'm', '8057', '7189', 'e', 'b', 'n', 'R', 'T', 'E', 'Q', '5115', 'X']

A:
22412
****