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: 6, 7, ['6947', 'l', 'd', '6531', 'X', 'l', '9741', '6553', '9905', 'n', 'Q', 'Y', '2063']

SOLUTION: 9741

PROBLEM: 2, 4, ['X', 'o', '8807', 'r', 'q', '825']

SOLUTION: 8807

PROBLEM: 3, 12, ['6943', '4105', 'm', '8225', 'R', 'e', 'i', '8595', 'T', 'M', 'v', '873', '9729', '6873']

SOLUTION:
17693