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]: ['n', 'W', '565', '6625', '903', 'o', '7995', '8339', '5251', 'e', 'a', '1081', '5813', 'o']
[A]: 36572


[Q]: ['T', 'n', '8513', '5565', '6343', '1403', '975', '6959', '8049', '1601', 'j', 'Q', 'O', '7889', 'r', 'D', '1903', '6607']
[A]: 55807


[Q]: ['2051', '8839', '4493', '2285', '7515', '2613', 'C', '735', '8449', 'n', '8691']
[A]:
45671