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: 5, 13, ['8179', '2435', 'w', '6965', '2003', 'c', '2091', 'w', '225', 's', 'k', '4281', '1931', '3351', 'o', 'f', 'Y', 'm', '8223', 'X', 'H', 'X']

SOLUTION: 10531

PROBLEM: 1, 7, ['Y', 'n', '8993', 'X', '7211', 's', 't', 'R', 'm', 'L', '9559', 'K', 'j', '791']

SOLUTION: 16204

PROBLEM: 8, 9, ['871', 'Q', '4487', '2301', '9191', 'B', 'g', 'y', 'c', 'q', '4391', 'p', 'j', '8793', '2951']

SOLUTION:
0