instruction:
In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to return the sum of all the numerical elements in the list A between the positions i and j (including positions i and j). Return 0 if no numerical element is present in the list between the given ranges. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
question:
1, 6, ['u', 'L', 'm', '9283', 'e', '4615', '7815', '7185', 'h', 'h', '8985', '3987', '1521', 'k', '5715', 'd', 'w', 'T']
answer:
13898


question:
10, 15, ['n', '4807', 'a', 'Q', '3781', 'h', '1553', 'n', 'J', 'L', 'M', '3781', '6375', '2429', 'O', '1687', 'L', 'S', '607', '9433']
answer:
12585


question:
2, 3, ['B', '9865', 'G', 'v', '1077']
answer:

9865