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, 4, ['2133', '7673', 'r', '6647', '899']

SOLUTION: 7673r6647

PROBLEM: 4, 22, ['i', 'Y', 'D', 'I', '7775', '7615', '3411', '6273', '2707', '1501', '2947', 'O', 'E', '2715', 'T', '4975', '4001', 'H', '689', '2465', 'I', '4139']

SOLUTION: I7775761534116273270715012947OE2715T49754001H6892465I4139

PROBLEM: 2, 4, ['6171', '581', '5461', 'f', 'N', '1681', 'w', 'A', '403', '1939', '9489', '2691']

SOLUTION:
5815461f