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]: ['3351', '6445', 'Y', '8455', 'V', 'z', 'a', 'V', 'S', '8551', '4101', 'q', '8743', '5999', '7155', '3825', '2241', '9957']
[A]: 68823


[Q]: ['d', 'b', 'W', '3201', 'C', 'o', '5187', '9723', '8177', 'F', '6703', 'U', '1393', '1035', '3507', '5993', '3857', 'r', 'C', 'j']
[A]: 48776


[Q]: ['7985', 'e', 'L', 'e', '2657', 'P', 'h', 'Z', 'G', '8773', '6773', '1117', '7449', 'n', '1997']
[A]:
36751