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, 6, ['1529', '2989', 'T', '8059', 'f', 'j', 'x', '2209']

SOLUTION: 12577

PROBLEM: 8, 24, ['2767', '5843', '2707', '2337', '6373', '1267', 'T', 'l', 'N', 'T', 'Z', 'Y', '699', '8411', 'L', '3983', '9083', '4929', '3757', 'R', '2281', '3547', '9079', 'R', '787']

SOLUTION: 45769

PROBLEM: 1, 3, ['U', 'K', 'X', '4657', 'Y']

SOLUTION:
0