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, 12, ['K', '5995', '5183', '67', '563', '9143', 'M', 'H', '2923', '1825', 'y', '373', 'm', 'w', 'x']

SOLUTION: 5121

PROBLEM: 5, 6, ['2277', 'k', 'S', '6367', 'q', '5455']

SOLUTION: 5455

PROBLEM: 4, 25, ['l', '9267', '1849', 'y', 'Y', 'E', '521', 'N', '3143', '7095', '5027', 'C', '9937', '2255', 'k', 'x', 'g', '271', '4517', '1993', '8283', '877', 'H', '3575', '6709', '193']

SOLUTION:
54203