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:
4, 4, ['8943', '8643', 'z', 'P', 'q', 'v', '2799', 'm', '8201', 'e', 'j', 'r']
answer:
P


question:
3, 7, ['3935', '2067', 'b', 'i', '5417', 'W', '2201']
answer:
2201W5417ib


question:
19, 23, ['o', 'e', 'z', 'T', 'f', 'p', 'X', '3449', '3907', 'X', '8499', 'x', '6045', '3279', '8797', '4515', 's', 's', 'a', '5571', '3945', '1451', '9913', 'A', '3523', 'z', '5495']
answer:

9913145139455571a