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]: ['X', 'u', 'B', '269', '9089', 'M', '5175', 'K']
[A]: 14533


[Q]: ['F', 'z', '1159', '345']
[A]: 1504


[Q]: ['9139', '9125', '5585', 'S', 'g', 'd', 'o', '2415', '6615', '325', '8705', '1325', 'N']
[A]:
43234