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, 2, ['2333', '6101']

SOLUTION: 8434

PROBLEM: 5, 6, ['i', 'i', 'J', 'O', '4571', 'o', '2073', '87', 'x', '9937', '9917', '4283', 'S']

SOLUTION: 4571

PROBLEM: 6, 15, ['U', 'E', '6873', '7621', '9241', '147', '4503', 'z', '3805', 'n', '4331', '4031', '2585', '9029', 'a', '7537', '975']

SOLUTION:
28431