instruction:
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.
question:
['4529', '7465', 'S', 'Z', 'v', 'w', '5791', '3363', '2643']
answer:
23791


question:
['3575', '8877', '3231', 'v', '9083', '317', 'M', '8975', 'x', 'F']
answer:
34058


question:
['v', '4761', '125', 'z', '9383', '1109', 'V', 'N', 'z', 'O', '2383']
answer:

17761