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, 4, ['v', 't', '4357', '1303']

SOLUTION: 5660

PROBLEM: 6, 15, ['U', 'G', '4461', '7163', '5651', 'x', '4017', 'W', '7237', 'k', 'b', 'k', 'h', '9147', 'T', '9035', '537', 'Y', 'Q']

SOLUTION: 20401

PROBLEM: 8, 10, ['d', '5061', '1489', '7133', 'O', '3579', '5057', 'W', 'g', '47', 'k']

SOLUTION:
47