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: 14, 15, ['B', 'i', 'F', 'F', '7361', 'U', '6625', 'x', '7875', 'm', '5637', '9533', 'y', 'e', '5049', '3809', '1', '8269', '435', '2363', '1679', 'e', '8775', 'A', 'l', '161']

SOLUTION: 5049

PROBLEM: 15, 24, ['987', '1799', 'q', '4969', '7401', 'M', '1637', '423', 'D', '2883', 'O', '5667', 'z', 'k', '6791', 'O', 'o', '4693', '6961', 'E', 'k', 'm', 'g', 'O', '7131', 'I', '7671']

SOLUTION: 18445

PROBLEM: 2, 4, ['t', 'j', '6281', 'P', '4191', '4689', 'S', '113', '8975', '4045', '4755']

SOLUTION:
6281