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: 7, 12, ['273', 'h', '2433', '7155', '731', '5459', 'q', 'G', 'i', 'l', '3981', 'W', 'V', '4999', '8191', 'K', '8393', '9255']

SOLUTION: 3981

PROBLEM: 4, 4, ['t', 'Z', '8689', 'I', '5589', 'H', 'Z']

SOLUTION: 0

PROBLEM: 5, 10, ['8389', 'c', 'p', 'l', '13', 'w', '571', 'z', '365', 'o', 'X', '155', '6499', 'Q', '2941', 'W']

SOLUTION:
949