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, ['X', '8101', 'v', '283', 'v', 'O', 'Y']

SOLUTION: 283

PROBLEM: 3, 4, ['9567', '9317', 'l', 'n', 'i', '6993', '2775', '2651', '1311', '2955', '6271', 'b', '7333', 'U', 'd', '6455', 'n', 'o', '1871', 'u']

SOLUTION: 0

PROBLEM: 4, 15, ['5377', '2123', '7893', 'Z', 'O', 'D', 'k', 'u', '775', '533', '8949', '8567', '6697', '6269', 'q', 'F', 'm', 'Q', 'M']

SOLUTION:
31790