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]: ['C', '3133', '2183', '5793', '9305', 'd', 'g', '6501']
[A]: 26915


[Q]: ['V', 'O', '1309', 'm', '9333', '8283', 'Z', 'K', 'X', 'w', '9855', '9075', '2013', '8485', '9973', '8779']
[A]: 67105


[Q]: ['e', 'D', '8771', '3047', 'D', 'U', 'V', 'u', '7033', 'B', '6329', 'e', 'c', '221', '5203', 'E', '8099', 'P', 'Z', '4555']
[A]:
43258