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, 4, ['I', '8765', 'a', '719', '2555', 'w', '3437', '6159', 'e', '5239']

SOLUTION: 719

PROBLEM: 2, 5, ['9153', 'S', '605', '2951', 'I', 'o', '4995', '2895']

SOLUTION: 3556

PROBLEM: 1, 2, ['8655', 'K']

SOLUTION:
8655