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: 2, 4, ['X', 'o', '8807', 'r', 'q', '825']

SOLUTION: 8807

PROBLEM: 3, 14, ['8305', 'q', '9455', '9395', '8619', '8071', '5379', '1109', '2481', '461', '6235', '2597', 'r', '8289', 'J']

SOLUTION: 62091

PROBLEM: 2, 5, ['5777', '6005', 'm', 'b', '2683']

SOLUTION:
8688