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.
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Question: 4, 4, ['Y', 'X', 'r', '439', 'D', 'H', '1903']

Answer: 439


Question: 6, 6, ['I', '8721', '6901', '737', '5767', '9771', 'h']

Answer: 9771


Question: 18, 20, ['4855', 'K', '2469', '7617', 'L', 'O', '215', 'n', '3037', '9253', '2485', 'i', 'S', 'z', '9671', 'w', 'G', '2593', '1079', '233', '3995', '2123', 'U', '5157']

Answer:
3905