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: 6, 9, ['J', '5177', 'm', '7413', 'T', 'N', '5153', 'S', '8145']

SOLUTION: 13298

PROBLEM: 11, 15, ['W', '8193', '2581', 'f', 'j', '5727', 'A', '6177', 'u', '4201', 'T', 'w', 'C', 'u', '7973', 'd', 'c']

SOLUTION: 7973

PROBLEM: 2, 2, ['R', 'O', 'p', '1241', '6563']

SOLUTION:
0