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: 4, 5, ['677', '5585', 'W', 'J', 'C']

SOLUTION: 0

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

SOLUTION: 9741

PROBLEM: 1, 15, ['3307', 'c', 'm', '6403', 'X', 'K', 'k', 'Y', 'n', '41', 'j', '8783', '1621', '3319', 'y', '4659', '4919', 'f', '3909', 'Z', '9861', 'N', '7275', 'S', '9461', 'b', '1103', 'N', '8015']

SOLUTION:
23474