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, 3, ['u', '7053', '303', '329', 'D']

SOLUTION: 7356

PROBLEM: 2, 8, ['743', '3417', '5979', 'J', 'f', '4707', 'k', 'i', '2167', 'V', 'g']

SOLUTION: 14103

PROBLEM: 15, 25, ['921', 'x', '6753', 'a', '5745', '2491', 'c', '8955', 'b', 'x', '5133', 'p', '2023', '183', 'm', 'C', '7697', 'd', '9639', '1629', '9519', '7557', '1799', 'X', 'G', '5539', 'B', '5567', '2893', 'u']

SOLUTION:
37840