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: 2, 2, ['V', 'a']

SOLUTION: 0

PROBLEM: 4, 18, ['b', 'K', 'Z', '8757', '691', '8915', 'l', '2819', '9599', '4149', '8791', '7815', '7211', '1973', 'w', '5557', '1071', '2483', '9851', 'x', '5441', '2787', '3723', '5981', 'o', '1045', 'z']

SOLUTION: 69831

PROBLEM: 5, 15, ['e', 'w', 'I', 'G', '6935', 'Q', '9461', '7025', '7323', '6781', 'R', '1167', 'g', '2201', 'u', '6595', 'x', '6115', 'x', '6279', 'h', 'J', '5389', 'f', 'N', 'o', 'f', 'u', 'H', '4041']

SOLUTION:
40893