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: 1, 3, ['g', 'g', 'K']

SOLUTION: 0

PROBLEM: 6, 7, ['6947', 'l', 'd', '6531', 'X', 'l', '9741', '6553', '9905', 'n', 'Q', 'Y', '2063']

SOLUTION: 9741

PROBLEM: 8, 9, ['g', 'B', '5077', '1011', 'T', '2619', '865', 'X', 'P', '5593', 'A', 'R', 'H', '9349', '5931', 'G', '1085', '961', '5631', '823', 'h', '5949']

SOLUTION:
0