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: 3, 15, ['8815', 'w', '5613', 'm', '9515', '9741', 'O', 'U', '7197', '5237', 'M', '9899', '8289', 'l', '3', '9313', '4467', 'K', 'k', '637']

SOLUTION: 55494

PROBLEM: 2, 10, ['9653', '3845', 'm', 'K', 'j', '5041', 'W', 's', 'j', 'A', 'G']

SOLUTION: 8886

PROBLEM: 3, 11, ['k', '403', 'P', 'N', 'Z', 'X', '2535', 't', 'r', 'x', 'X', '6213', 'P', '8145', '3027']

SOLUTION:
2535