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, 8, ['3403', 'r', '7273', 'g', 'O', 'A', '123', '2839', 'g', 'R', 'f', 'y', 'F']

SOLUTION: 10235

PROBLEM: 1, 15, ['t', '77', '6593', '3683', '5673', '9391', 'Y', 'A', '3273', '379', '6569', 'l', 'u', '8633', 'M', '8587', '3127', '5885', '4083']

SOLUTION: 44271

PROBLEM: 3, 3, ['x', 'V', 'e']

SOLUTION:
0