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: 20, 21, ['3975', '2459', 'X', '337', 'X', '5453', '9019', 'O', '4911', '1019', 'y', 'D', 'K', 'W', 'v', '2479', 'a', 'o', '4867', '9195', '3269']

SOLUTION: 12464

PROBLEM: 13, 14, ['6693', 'J', '2765', 'P', 'h', '755', 'z', '7483', 'W', '6895', '1293', '3479', 'Y', '1667', '9635']

SOLUTION: 1667

PROBLEM: 2, 20, ['m', 'h', 'f', 'p', '5595', 'y', 'B', '6551', 'H', 'Q', 'e', '3177', 'k', 'f', 'p', '8409', 'o', 'N', 'P', '8977', '4159', 'i', 'F', 'H', '6549', 'B']

SOLUTION:
32709