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 concatenate all elements of A from the ith element to the jth element, and print the resultant string. 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: 2, 5, ['3823', 'P', '9615', '6979', '5511', '7483', '4315', '6363', 'u']

SOLUTION: P961569795511

PROBLEM: 2, 3, ['8543', '3395', 'J', '1569', '3547', '4241', 'j', '1937']

SOLUTION: 3395J

PROBLEM: 21, 23, ['Z', 'H', 'Q', '1239', 'g', '9323', '5223', '5843', 'N', '3471', '4229', 'P', '1099', 'e', 'P', '8309', '7009', '1063', '4207', 'm', '2505', 'K', '9693', '4387', '3311', '9097', '3763', 'F']

SOLUTION:
2505K9693