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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
PROBLEM: 7, 7, ['L', 'N', 'k', '4239', '9509', 'B', '875', '8169', '5417', 'N']

SOLUTION: 875

PROBLEM: 9, 16, ['H', 'S', 'g', '2275', '1511', '6163', 'm', 'S', 'Q', 'C', '5829', '6275', '9281', 'v', '59', '5985', 'a', '6129', '6053', 'g', 'n', 'C', 'V', '1441', '4517', 'p', 'W', 'p', 'w', '2551']

SOLUTION: 598559v928162755829CQ

PROBLEM: 18, 22, ['2445', 'L', 'x', 'i', '9929', '3105', 'v', '445', 'O', '353', 'j', '9877', 'D', 'U', '885', '9485', 'V', '8219', '2963', '685', '1659', 'U']

SOLUTION:
U165968529638219