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: 1, 4, ['3757', 'z', '9029', '6903', '7185']

SOLUTION: 19689

PROBLEM: 3, 21, ['X', 'Z', '749', '5557', '9991', 'T', '3461', '335', 'I', 'J', '7113', 'b', '2683', '653', '3951', '4193', 'J', '7179', 'G', 'Y', '6151', '2873', 'X', '5619', '5151', '7689', '5605', 'o']

SOLUTION: 52016

PROBLEM: 2, 6, ['I', 'z', '1105', 'K', 'z', 'P', '4297', 'N', 'f', 'C', 'V', '8731', 'T', 'C']

SOLUTION:
1105