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, 16, ['v', 'd', '6599', 'd', '9305', '6377', '5009', '3797', '3861', '9421', 'G', 'N', 'm', 'x', 'E', '7047', 'W', '5629', 'j']

SOLUTION: 51416

PROBLEM: 5, 14, ['r', '5851', '5957', '1951', '9761', '6805', '2323', 'J', '703', '9479', '6653', 'L', '513', 'A', 'v', '4273', '391', 'b']

SOLUTION: 36237

PROBLEM: 13, 16, ['527', '6577', 'k', '6281', '6099', '7147', 't', 'J', '5803', '2399', '8323', 'm', 'A', '6199', '5837', '5241', 'n', '5983', '1833', 'n', 'b', 'v', 'q']

SOLUTION:
17277