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: 6, 10, ['2095', '7189', 'j', 'i', '6105', 'f', 'I', 'z', '7903', '7165']

SOLUTION: 15068

PROBLEM: 19, 21, ['y', '9403', 'C', '389', '5521', '9271', 'W', 'B', '3613', 'w', '2741', 'H', '8305', '727', '7641', '5857', '9183', '1297', 'p', '7371', 'b']

SOLUTION: 7371

PROBLEM: 4, 12, ['r', '2951', '7921', 'U', 'p', '7477', '1563', 't', 'G', 'H', '8005', '4681', 'A', '191', 'M', 'k', '6327']

SOLUTION:
21726