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: 14, 17, ['Q', '7681', '8379', '2569', 'D', '5179', 'M', 'M', 'k', '187', '9275', 'V', 'L', 'F', '6397', '6385', 'O', '4823', '8655']

SOLUTION: 12782

PROBLEM: 1, 18, ['1137', '7521', '1291', 'o', '391', '5329', 'X', '391', 'i', '6893', '8547', '9361', 'Z', 'O', '9701', '4097', '9273', '3877', '1589', '9097']

SOLUTION: 67809

PROBLEM: 2, 9, ['d', 'O', '8651', 'q', 'x', '6017', 'Q', '7997', 'X', '8601', '523', '2193', '9119', 'e', '4265', '2707']

SOLUTION:
22665