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: 12, 18, ['9047', '1191', '7027', 'b', '1877', 'n', '337', 'n', 'o', '9007', 'd', 'F', '4929', '2707', 'B', 'y', 'o', '2859', '1609', 'N', 'w', 'H']

SOLUTION: 10495

PROBLEM: 1, 6, ['1529', '2989', 'T', '8059', 'f', 'j', 'x', '2209']

SOLUTION: 12577

PROBLEM: 8, 8, ['3325', '8245', 'I', '939', 'R', '8461', '6519', '8623', 'A', 'C', 'l', '697', '4485', '8187', '2749', '4591', '923']

SOLUTION:
8623