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: 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: 1, 17, ['4061', '8041', 'V', '5461', '8247', '3119', 'p', '5313', 'T', 'Z', 'D', '8837', 'B', 'a', '6441', 'O', '8311', 'Z', '473', '9', 'Q', 'E', '2957', 'W', '6263', '3917', '9775', 't']

SOLUTION: 57831

PROBLEM: 1, 9, ['i', 'q', '543', 'K', 'V', '1869', 's', 'p', '1047', 'W', 'Q', '2597', 'e']

SOLUTION:
3459