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: 11, 13, ['L', 'v', 'o', '8089', 'u', '7105', '4451', '9785', 'e', 'p', 'p', '7077', '2815', 'v', 'p', '3593', 't', '6771', 'd', '2651']

SOLUTION: 9892

PROBLEM: 8, 25, ['y', 'r', '639', '6501', '7755', 'A', 'v', 't', '3209', '7899', 'Z', '6099', 'Q', 'L', 'T', 'b', 'P', '6913', 'J', '8855', '551', '4509', '143', '9331', 'c']

SOLUTION: 47509

PROBLEM: 4, 13, ['337', 'E', '7969', 'S', '3777', 'C', 'N', '7159', '721', '3083', 'w', '1449', '331', '3993', '95', '8383']

SOLUTION:
16520