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: 7, 26, ['I', 'K', '7025', 'g', '271', '9365', 'i', '449', 'q', '8499', '4887', 'M', '885', '3831', '4789', 'I', '8181', 'b', 'I', '5639', 'p', '649', '535', 'k', '6621', 'j', '9539']

SOLUTION: 44965

PROBLEM: 6, 9, ['7895', '3853', 's', '7', '1351', '5409', 'y', 'R', '329', 'l', 'v', '569', '8461', 'O', 'p', '2845']

SOLUTION: 5738

PROBLEM: 6, 13, ['w', 'w', '3757', '4427', 'K', 'Y', '6151', '3963', 'c', 'O', '9785', 'V', '6555', 'C', '4805']

SOLUTION:
26454