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, 22, ['k', '427', 'x', '9695', 'a', '2243', '329', 'F', 'n', '6253', '4873', 'f', 'z', 'R', 'b', '4351', 'b', 'i', 'g', '6937', 'I', 'k', 'f']

SOLUTION: 34681

PROBLEM: 1, 17, ['4061', '8041', 'V', '5461', '8247', '3119', 'p', '5313', 'T', 'Z', 'D', '8837', 'B', 'a', '6441', 'O', '8311', 'Z', '473', '9', 'Q', 'E', '2957', 'W', '6263', '3917', '9775', 't']

SOLUTION: 57831

PROBLEM: 16, 19, ['Y', '29', '229', 'o', 'g', 'Z', '9133', 'q', 'e', 'w', 'w', 'n', 'H', '9731', 'i', '1567', 'o', 'Z', '8553', 'm', 'l', '4239']

SOLUTION:
10120