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, 4, ['2107', 'l', '7551', '4907']

SOLUTION: 4907

PROBLEM: 1, 13, ['8671', 'w', '2473', '7883', 'X', 'J', 'h', 'D', 'J', '4519', '1061', 'v', 'o', '9497', 'c', 'u', '9317', 'M', 'J', 'I', 'b', 'P', 'F', '7691', '1839', 'D']

SOLUTION:
24607