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: 2, 7, ['E', 'e', '5585', 'g', '4971', '8891', '811', 'l', '527', '4299', 'b', 'N', '5079', 'j', '5555', '4789']

SOLUTION: 20258

PROBLEM: 4, 13, ['d', 'v', 'K', '2011', '7323', '5735', 'u', '4227', 's', 'n', '1161', 'm', '5463', 'I', '2813']

SOLUTION: 25920

PROBLEM: 1, 2, ['K', 'l', '4745', '4777', '5449', '9083', 'j', '9015', 'F', 'R', 'D', '7337', 'F', 'k', 'S', '9373', 'I', 'f', 'P', 'I', 'Z', '4525', 'D', '8773', '7145', '5881']

SOLUTION:
0