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: 3, 5, ['X', '8101', 'v', '283', 'v', 'O', 'Y']

SOLUTION: 283

PROBLEM: 7, 9, ['6409', '7805', '2757', 'A', '8949', '449', 'N', 'M', '9511', 'v', '6085', '1101', '4995', 'B', '6039', '295', '5459', '4211', 't', '3415']

SOLUTION: 9511

PROBLEM: 1, 7, ['J', '5697', 'N', 'S', 'U', '8893', '5353', 'M', 'M', '7349', 'l', '7387', 'l', 'b', 'C', 's', 'C', '9317', 'R', '5381', 'm', '1437', 'q']

SOLUTION:
19943