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: 12, 14, ['6255', 'M', '3541', 'A', 'I', 'W', '2289', '9861', 'L', '2527', 'h', '355', '7033', 'p', 'f']

SOLUTION: 7388

PROBLEM: 10, 14, ['E', 'P', 'm', 'o', '4203', '657', 'Z', '9975', 'p', '4013', 'M', 'm', '7369', 'x', 'K', 's', '9411', '9787', '4293', '8229']

SOLUTION: 11382

PROBLEM: 8, 13, ['1371', 'z', 'Y', 'F', 'F', 'A', '6281', 'Z', 'Y', '145', '5265', '9561', '1433', '2049', 'v', 'P', 'G', 'n', '3555', 'L', 'g', '4833', '6899', 'P', 'T', '1013', '5395', 'z']

SOLUTION:
16404