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: 9, 12, ['4189', '4575', 'i', 'e', 'Y', '5595', 'U', 'M', 'b', 'n', '5347', 'v', 'w', 'Z', 'F', '503', 'G', '4429', '3087', '295', 'W']

SOLUTION: 5347

PROBLEM: 20, 26, ['8183', 'I', 'o', 'B', '7567', '4953', '8133', '2883', 'g', 'D', '865', 'a', 'y', 'Z', 'F', '3211', 'e', 'X', '5135', '7257', 'G', '1577', '7977', 'X', 'z', 'e']

SOLUTION: 16811

PROBLEM: 2, 5, ['l', '1715', 'c', '3219', '5209', '141', '8853', '4147']

SOLUTION:
10143