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: 11, 20, ['8031', 'v', 'p', '4015', 'v', '3299', '4143', '445', 'I', 'L', 'm', 'u', '7963', '8085', 'c', 'k', 'I', 'A', '8433', '1897', 'g', 'x', '5935', '5195', 'W', 'j', 'A']

SOLUTION: 26378

PROBLEM: 1, 2, ['8235', 's']

SOLUTION: 8235

PROBLEM: 7, 22, ['I', '8489', 'm', '7081', '375', 'z', 'u', '483', 'T', 't', '387', 'p', 'W', '8151', 'n', '1229', 'F', '5363', 'w', '8803', '4453', 'H', '4727']

SOLUTION:
28869