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, 6, ['7073', '3047', 'O', 'c', 'u', 'G']

SOLUTION: 0

PROBLEM: 4, 10, ['B', 'b', '6741', '9121', 'N', '2871', 'Z', '1685', '995', '8681', '8591', 'z', '7423', '8661', 'R', 'b', 'g', 'Z', '5679', '4217', 'h', '8497', '3261', '6891', '2145', 'Y']

SOLUTION: 23353

PROBLEM: 2, 7, ['s', 'f', 'z', 'Q', '5151', 'Z', '6995']

SOLUTION:
12146