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.
--------
Question: 3, 18, ['P', '1429', '3883', '1883', 'u', 'K', 'N', 'j', 'u', 'H', 'y', '7785', '7371', '6869', '1613', '6515', '695', 'U', 'u']

Answer: 36614


Question: 4, 9, ['9557', '1661', 'E', '5173', 'o', '4963', '2811', '5471', '3853']

Answer: 22271


Question: 1, 2, ['a', 'P']

Answer:
0