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, 2, ['9621', '3231', '5905', 'M', '3233', 'j', '2449', '3805', '4923', '235', '407', 'w']

SOLUTION: 12852

PROBLEM: 4, 8, ['3753', 'y', '417', 'B', 'g', 'D', 'L', '6175']

SOLUTION: 6175

PROBLEM: 2, 3, ['u', '8131', '2701']

SOLUTION:
10832