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: 3, 4, ['2425', 'J', 'x', '8829', 't', '7927', 'R', 'J', '1599', '3149']

SOLUTION: 8829

PROBLEM: 6, 25, ['m', 's', '8117', '5693', '4717', '5071', 'T', '2173', '323', '6283', '4457', 'j', 'U', 'q', '1713', 'm', '3827', '4097', 'o', '2337', '1997', '1719', '8077', '6757', '3199', '7657', 'P', '3993']

SOLUTION:
52030