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, ['4001', 'e', 'm', 'Q', 'T', 'a', '2909', '4043', 'O', 'L', '3401', 'Y', '4015', '2045', '3881', 'd']

SOLUTION: 4001

PROBLEM: 2, 16, ['e', 'Q', '4017', '1999', '2413', 'v', '4911', 'N', 'x', '3475', '2179', 'o', 'a', '6361', '1723', '6273']

SOLUTION: 33351

PROBLEM: 4, 10, ['r', 'f', '7149', '2641', '4411', 'r', '4951', 'F', 'o', 'A', 'r', 'x', '9685', '1065', 'G']

SOLUTION:
12003