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, 6, ['F', 'u', '4899', 'P', '2029', 'A', '9641', '8201', 'e', 'g', 'Y', '3483', 'y', '6515', 'S']

SOLUTION: 2029

PROBLEM: 7, 15, ['1769', 'c', '7895', '8687', '985', '7559', '1109', 'X', 'z', '2309', 'D', 'P', '8655', 'I', 'u', 'z', '9639', '83', '7631']

SOLUTION: 12073

PROBLEM: 10, 11, ['695', 'X', 'H', 'S', '8163', 'A', '6511', 'b', 'h', '9731', 'X', '485', '4135', 't', 'p', '4237', '1317']

SOLUTION:
9731