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: 10, 14, ['u', 'o', 'V', '8223', '365', 'u', '8971', '4209', 'E', 'I', '3385', '5521', '1329', 'b', 'C', '5707', '1807', '2859', '7443', '8141', 'u', '6269', '5781', 'T', 'N', 'R', 'C']

SOLUTION: 10235

PROBLEM: 1, 12, ['m', 'f', 'y', '2363', '9555', 'E', 'm', 'J', '1977', 'z', '3733', '9745', 'm', 'u', '1033', 'x', '7351', 'O', 'W', '8311', '955', '8643', 'D', 'e', 'z', 'M', '5139', 'o', 'a']

SOLUTION: 27373

PROBLEM: 6, 16, ['2115', 'O', 'e', '6169', '6561', '347', 'A', '5433', '149', 'r', '4347', 'I', '8653', 'G', '5839', 'b', '1819', '2035', 'M']

SOLUTION:
24768