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, 5, ['O', '4521', 'w', '6745', 'W', '7743', '4113', '7179', '9751', '2365', '9161', 'j', '1339', '6927']

SOLUTION: 11266

PROBLEM: 5, 6, ['2277', 'k', 'S', '6367', 'q', '5455']

SOLUTION: 5455

PROBLEM: 4, 5, ['8753', '4439', '7751', '3663', '2355']

SOLUTION:
6018