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: 17, 22, ['4123', '6299', '2781', '759', 'f', 'A', 'X', '2549', 'K', '8119', '8725', 'e', 'I', 'S', '1429', 'd', '8051', 'Q', 'y', '1045', '763', 't', 'J', 'J', '169', 'b', '721']

SOLUTION: 9859

PROBLEM: 22, 25, ['681', '2393', 'f', 'g', '5051', '5839', 'T', 'p', '8057', '6929', 'N', '1519', 'G', '8969', '8589', 'T', 't', '4915', 'r', 'M', 'N', '8285', '8607', '4333', '7457', '343', 'f', 'r']

SOLUTION: 28682

PROBLEM: 5, 19, ['K', '9837', '5647', '3545', 'q', '8301', '5635', 'C', 'e', '9531', 'm', 'i', '1317', '9079', 'U', 'o', '9057', 'Z', 'Q', 'G']

SOLUTION:
42920