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: ['2215', '4369', 'e', '4979', '4069', 'J', 'L', '789', 'w', 'p', '9533', '8523', '2531']

A: 37008
****
Q: ['F', 'v', 'G', '6023', 'M', 'Q', 'A', '8477', '2079', 'A', '813', 'C', '3479', 'G', '1977', '5569', '8749', 'Y']

A: 37166
****
Q: ['D', '927', '7315', 'J', 'q', 'O', 'R', 'V', 'v', 'e', 'E', 'z', 'e']

A:
8242
****