TASK DEFINITION: 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.
PROBLEM: 1, 2, ['7321', '6233']

SOLUTION: 13554

PROBLEM: 6, 8, ['x', 's', '1415', '6003', '2237', 'g', 'l', 'a', 'l', 'y', 'y', '4651', 'e', 'D', 'g']

SOLUTION: 0

PROBLEM: 7, 9, ['c', 'n', '8945', '337', 'n', 'x', '6165', 'e', 'f', '8517', '4617', '6373', 'v', '6783']

SOLUTION:
6165