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: 1, 1, ['x', 'g', 'X', 'j', 'k', '9821', 'n', 'd', '1709', 'r']

SOLUTION: 0

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

SOLUTION: 4866

PROBLEM: 3, 4, ['Y', 'r', '3337', 'O']

SOLUTION:
3337