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: 8, 9, ['6753', 'Y', 'v', '1365', '1033', 'l', 'A', '203', 'J', '8391', 'i', '1813', 'V', 'D', 'S', '4981', 'o']

SOLUTION: 203

PROBLEM: 14, 18, ['y', '4021', '9011', '3447', '6467', '5599', 'T', 'g', '1441', 'e', '2857', '7251', 'D', '619', '6413', '3145', '9355', 'O', 'Z', '6521', '5005', 'Q']

SOLUTION: 19532

PROBLEM: 21, 22, ['8341', '3235', 'q', 'l', 't', '3937', 'Y', 'K', 'e', 'g', '729', 'N', '2701', '3887', '6749', 't', '6613', '7451', 'x', '3717', '6461', '8599', '2227', '9275', 'x', '8631', '2631']

SOLUTION:
15060