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

SOLUTION: 44271

PROBLEM: 11, 13, ['O', '4429', 'F', '2013', 'v', 'p', 'y', '507', 'g', '935', '1827', 'Q', '4267', 'A', 'm', 'g', 'k', 'S', 'a', 'C', 'q', 'W', 'M']

SOLUTION: 6094

PROBLEM: 1, 9, ['x', '8833', 'i', '8011', 'G', '9403', '6585', 'k', '3745', '7617']

SOLUTION:
36577