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: 3, 5, ['b', 'a', 't', 'l', '8337', 'L', '913', 'O', '1009', '3615', 'u', 'E', 'Y', 'h', '51', '1673']

SOLUTION: 8337

PROBLEM: 3, 14, ['D', 'Q', 'W', '3925', '7569', '2455', '9499', 'A', '3205', '9459', 't', '9053', 'q', 'T']

SOLUTION: 45165

PROBLEM: 3, 4, ['5303', 'm', 'p', '3065', '1709', '1109', 'M', 'E', '4293', '6101', 'L', '5249', 'l', '6695', '9139']

SOLUTION:
3065