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: 6, 9, ['7895', '3853', 's', '7', '1351', '5409', 'y', 'R', '329', 'l', 'v', '569', '8461', 'O', 'p', '2845']

SOLUTION: 5738

PROBLEM: 1, 14, ['T', 'y', 'L', 'l', '5307', 'j', '2235', '9617', 'e', '7687', 't', '4357', '1745', 'X', '8485', 'a', '1387', '1351', '6437', 'u']

SOLUTION: 30948

PROBLEM: 10, 23, ['8071', '2745', 'Q', 'O', '1527', 'O', 'O', '8923', '6649', 'H', 'q', '2915', 'R', '713', '1505', 's', 'E', '3823', '9337', 'F', '1287', 'x', '3793', 'a', '4169', 't', 'i']

SOLUTION:
23373