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: 3, 4, ['F', '7341', 'P', '3315']

SOLUTION: 3315

PROBLEM: 1, 1, ['1449', '1257']

SOLUTION: 1449

PROBLEM: 5, 15, ['29', '1047', 'G', 'l', 'B', '3997', '3027', 'p', 'j', '2051', 'L', '8593', '2305', '7785', '2333', 'y', 'M', '2879', '8897', 'f', 'q', '5269', 'b', 'q', '3067', 'b', 'T', 'H']

SOLUTION:
30091