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: 1, 6, ['1529', '2989', 'T', '8059', 'f', 'j', 'x', '2209']

SOLUTION: 12577

PROBLEM: 1, 1, ['7479', 'q', 'F', '5725', '7697', '6653', '275', 'l', '7349', 'c']

SOLUTION: 7479

PROBLEM: 2, 11, ['b', 'M', '6121', 'J', 'p', '9137', 'o', 'q', 'l', 'F', 'm', '643', '1129', '6795', 'G', 'K', '4491', 'B', '7533', 'b', 'r', 'x']

SOLUTION:
15258