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, ['4845', '7313', 'P', 'A', '2285', 'C', 't']

SOLUTION: 0

PROBLEM: 1, 6, ['a', '9091', 'I', '4849', 'O', '2435', 'v']

SOLUTION: 16375

PROBLEM: 10, 12, ['3459', 'm', '8519', 'b', 'a', 'p', 'N', '4689', '7973', '6081', '9747', '4287', 's', '9525', '5833', 'B']

SOLUTION:
20115