instruction:
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.
question:
16, 20, ['7675', 'c', '9729', '8219', 'P', '9939', '9217', 'C', '4067', '549', 'g', 'w', '3793', 'I', 'U', 'R', 'S', '2615', 'h', 'M', '889']
answer:
Mh2615SR


question:
16, 26, ['6975', 'z', '4385', 'K', '7559', 'N', '3341', '2471', 'q', 's', '5827', '7957', '1497', 'E', 'Q', '4407', '9275', 'J', 'W', 'G', '959', 's', '8381', '7705', 'Z', 'm', 'y']
answer:
mZ77058381s959GWJ92754407


question:
8, 16, ['7877', 'O', 'X', 'R', '4093', 'G', 'Z', 'R', '3695', 'O', 'A', 'D', 'c', 't', '1721', 'l', '7347', '7621']
answer:

l1721tcDAO3695R