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, 5, ['4487', '3761', '159', '7459', '6781', '2403', 'S', '3079', '7161']

SOLUTION: 18160

PROBLEM: 4, 7, ['6307', 'N', '5209', 'M', 'k', 'd', '6933']

SOLUTION: 6933

PROBLEM: 1, 5, ['S', 'v', 'N', 'b', '6953']

SOLUTION:
6953