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: 5, 10, ['8553', '4157', 'm', 'Q', 'u', 'j', 'X', 'r', '8579', '255', 'A', 'g', '7017', '5707', 'd', 'O', 'V', 's', 'p', '337', 'F', '5439', '5715', 'c', '2615', 'l', '3537']

SOLUTION: 8834

PROBLEM: 1, 9, ['6607', '6185', 'X', 'd', 'T', 't', 'Y', 'p', '2789', 'a', '7365', 'k', 'n', '1853', 'x', 'F', '5523', '2827', '1441', 'F', 'c', 'i', 'n', 'h', '3633']

SOLUTION: 15581

PROBLEM: 4, 14, ['a', '2371', 'm', '8551', 'G', 't', 'I', '29', '7419', 'e', '6581', '4329', 'm', '9831', '8349', '3287', '819', 'd', 'E', 'L', 'C', 'Z', 'o', '5707', '4919', '6453', 'k', '1997']

SOLUTION:
36740