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, 6, ['8527', '3499', 'M', 'f', 'V', 'B']

SOLUTION: 12026

PROBLEM: 12, 14, ['U', '5071', 'V', '9887', 'E', '3913', '3459', 'l', 'V', 'n', 'B', '655', 'L', 's', '2687', '9761', '2477', 'D', '8385', 'U', 'm', 'q', '4365', 'j']

SOLUTION: 655

PROBLEM: 4, 5, ['Q', '1967', 'D', 'b', '9695', 'w', '4381', '6427', 'H', '7429', '4183', 'K', 'E', '5587', '2931', 'k', '9423', 'f', '201', 'b', '2697', '5515', 'R']

SOLUTION:
9695