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, ['3949', '5315', 'G', 's', 'v', 'm', '7833', 'E', 'j']

SOLUTION: 0

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

SOLUTION: 3556

PROBLEM: 1, 1, ['Y', '5413']

SOLUTION:
0