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: 10, 12, ['465', 'V', '3045', 'M', 'Z', '4053', '9621', '6909', '3161', 'M', '6675', '2313', 'v', 'g', 'a', 'x', '9347', 'd', 'x', '4309', '7231', '9745', 'F', '8863', '4667', '2089', 'x']

SOLUTION: 8988

PROBLEM: 1, 3, ['x', '971', '3029']

SOLUTION: 4000

PROBLEM: 1, 9, ['k', 'w', 'K', 'Y', 'N', 'C', 'q', '4767', '1061', 'x', '2301', 'v', 'O', 'y', 'D', '3473', '4859', 'S', '549', 'g', '7129']

SOLUTION:
5828