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, 5, ['i', 'e', '6583', '313', '5511']

SOLUTION: 12407

PROBLEM: 11, 14, ['H', '4643', 'k', '9583', 'K', '3497', 'Q', '8111', '1837', 'Z', '6885', 'L', '1759', '7777', '3137']

SOLUTION: 16421

PROBLEM: 10, 14, ['k', 'n', '2137', 'g', '5537', '8011', 'w', 'e', 'k', '9357', 'I', 'D', '2815', 'q', 'b']

SOLUTION:
12172