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, 11, ['8237', '8149', '7077', '2199', '7839', 'c', 'j', 'Y', '845', '2273', 'n', 'Q']

SOLUTION: 28382

PROBLEM: 1, 6, ['237', 'x', 'Q', 'J', '4629', 'q', '2831', 'i', 'm']

SOLUTION: 4866

PROBLEM: 1, 14, ['7675', 'C', '2957', 'H', 'H', '6647', 'O', 'D', 'i', '889', 'V', 'I', 'b', 'r', 'W', 'W', '6353', '6265', '4109', '6513', '5769']

SOLUTION:
18168