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: 2, 19, ['5671', '7557', '3823', '2307', '2763', 'b', 'E', '5081', '4431', '6143', '6939', '9417', '8697', '4175', 'n', '7633', '8723', 'A', '7583', '2081', '7577', '4019', 'q']

SOLUTION: 85272

PROBLEM: 9, 12, ['8515', '4987', '7905', 'K', 'u', '2791', 'o', '8955', 'j', 'x', 'e', 'Z', '6231', '4913', '7933', '4079', '2945', '475', '6415', 'V', '8767', 't', 'c', '919', 'M', '5501', 'y', 'S', 'L', 'Q']

SOLUTION: 0

PROBLEM: 7, 20, ['X', '2589', 'p', '1719', 'm', 'x', '8761', '4649', 'D', '8655', '2731', 'm', '3461', 'k', 't', 'Q', 'm', '8877', 'e', 'c', '1195', '4363', '3405', 'k', '2817', 'o', '5937', '649', '9053', 'h']

SOLUTION:
37134