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, 8, ['r', 'H', 'K', 'K', '7307', 'i', '9381', '4175']

SOLUTION: 20863

PROBLEM: 12, 14, ['6255', 'M', '3541', 'A', 'I', 'W', '2289', '9861', 'L', '2527', 'h', '355', '7033', 'p', 'f']

SOLUTION: 7388

PROBLEM: 2, 6, ['709', 'Y', 'V', '1537', '4955', '2573', 'W', 'g', 'V', 'v', 'C', '5735', '7199', 'a', 'b', 's', 'k']

SOLUTION:
9065