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]: ['7277', 'c', '9587', '2613', '853', 'w', 'y', '4067', 'o', 'u', 'j', 'W', '1517', 'x', 'Y']
[A]: 25914


[Q]: ['6515', '5525', 'o', 'Q', '9049', 'f', 'p', 'X', '2057', 'h', '7585', '3617', '7817']
[A]: 42165


[Q]: ['C', '3893', 'O', '9325', 'h', '5417', 'M', 'H', '4397', '9259', 'o', '2793', 'p', '2949', 'a', '6127', 'M', 's', '3691', '4671']
[A]:
52522