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, 5, ['5057', 'Z', 'a', '4561', '225', '6921', 'T', '4033', '1259', '9805', 'l', '5641']

SOLUTION: 9843

PROBLEM: 1, 7, ['J', 'l', '9145', '5805', '4377', '2851', '8781', '7353', '145']

SOLUTION: 30959

PROBLEM: 1, 1, ['3655', '7395']

SOLUTION:
3655