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:
['7293', '2619', '2459', '3829', 'J', 'c', 'a', 'a', '311', 'x', 'r', '6123', '2847', '4809']
answer:
30290


question:
['Y', '8169', '9067']
answer:
17236


question:
['A', '201', '8661', 'y', 'l', 'O', 'z', '7495', '1231']
answer:

17588