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: 5, 11, ['P', '8565', '3357', '1049', '9881', 'V', '2119', '2447', 'M', '8017', 'N', 'n', '3913', '4271', 't', '1585']

SOLUTION: 22464

PROBLEM: 3, 16, ['T', 'v', '2985', 'F', '8921', 'M', 'F', '4243', 'k', 'x', '435', 'B', '3335', '7613', 'M', '7809', 'q', '4147', 'h', '7523', 'R', '7589', '8795', 'O', 'L', '3371']

SOLUTION: 35341

PROBLEM: 5, 5, ['8145', 'G', 'B', '3131', 'x', 'A', '8455']

SOLUTION:
0