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: 4, 25, ['H', '501', 'F', '4923', 'C', 'T', 'R', 'b', 'Z', 'e', 'i', 'H', '755', '6503', '2825', 'H', '1995', '7283', '2735', '4433', 's', 'P', '795', 'Z', 'Z']

SOLUTION: 32247

PROBLEM: 3, 5, ['7639', '7477', '2545', '6847', 'N', 'H']

SOLUTION: 9392

PROBLEM: 12, 12, ['l', '4757', 'l', 'z', 'n', 'N', 'B', 'i', '2063', 'e', '6301', 'G', '4633', 'n', 'r', '5517', '9099', '3565', 'K']

SOLUTION:
0