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: 9, 16, ['8223', '3639', '9643', '4457', 'q', 'q', '8831', '3521', 'h', 'H', 'C', '3965', 'a', '1559', 'u', '9189', '5355', 'u', 'h', 'y', 'D', 'p', 'S']

SOLUTION: 14713

PROBLEM: 3, 18, ['h', 'x', '371', 'i', '8545', '7767', '5033', '1041', 'A', '4643', 'L', '187', '5017', 'x', 'R', '7891', '3919', '9721', '8625', '5817', 'D', '4825', 'S']

SOLUTION: 54135

PROBLEM: 7, 19, ['G', 'r', 'u', 'e', 'O', '7983', '4733', '5333', '8511', 'q', '6343', 'z', 'n', 'd', '1511', 'f', '6681', 'X', 'v', '6725', '6501', '8771', '6245', 'A', 'a', '8337', '1885']

SOLUTION:
33112