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, 15, ['9021', '2343', '1041', '131', '9027', 'Q', 'v', 'j', '9391', '653', 'p', 'L', '4653', '6163', 'H', 'x', 'N', 'u', 'f', 'L', '6035', 'C', '5355', 'e']

SOLUTION: 30018

PROBLEM: 18, 24, ['3493', 'T', '2499', 'l', '543', 'Y', '2247', '2665', 'y', 'z', 'a', 'H', '1057', '2401', '5587', 'w', 'N', 'n', 's', 'H', 'u', 'N', '757', 'u', 'R']

SOLUTION: 757

PROBLEM: 7, 18, ['n', 'W', 'd', '2275', 'E', '2221', '1047', 'b', '7401', 'K', 'Y', 'q', 'h', 'r', 'I', 'z', 'N', 'n', '4483', 'm', '5021', '3621', '9443', '9853']

SOLUTION:
8448