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: 8, 12, ['i', '35', 'v', 'G', 'o', '5861', '8371', 'P', '1895', '6183', '8025', '2455', '4763', '409', 'e', 'A', '9029', 'a', 'I', '2761', '5481', 'f', '3413', '803', 'W', 'A', '8781']

SOLUTION: 18558

PROBLEM: 4, 4, ['2227', '1525', 'g', 'l', 'R']

SOLUTION: 0

PROBLEM: 11, 28, ['Y', '6559', 'R', 'I', 'H', 'J', 's', '507', '4549', '9437', 'f', '8109', '4225', '9923', 'o', '4221', '1423', '7949', '6913', '1449', 's', 'R', '8117', 'v', '4005', '2433', '1175', 'O']

SOLUTION:
59942