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, 6, ['d', 'v', 'd', '5043', '8989', 'w', 'Y']

SOLUTION: 14032

PROBLEM: 1, 6, ['u', 'L', 'm', '9283', 'e', '4615', '7815', '7185', 'h', 'h', '8985', '3987', '1521', 'k', '5715', 'd', 'w', 'T']

SOLUTION: 13898

PROBLEM: 30, 30, ['Y', '543', 'v', '5647', '9655', '277', 'P', 'J', 'L', 'S', '159', '1271', 'w', '4743', '5087', 'P', '7455', '9521', '5443', 's', '7977', '2363', 'K', '4487', '6669', 'r', '2381', 'L', 'W', 'Y']

SOLUTION:
0