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:
6, 7, ['R', '4581', 'r', '8391', 'D', '4973', '8835', 'Q', 'Y', '2441']
answer:
88354973


question:
8, 10, ['1431', '7383', 'n', '867', '6287', 'g', '4183', '1323', '3899', 'G', 'l', 'd', '1375', 'f', '8839', '4151', 't']
answer:
G38991323


question:
13, 18, ['d', '9617', 't', '3339', 's', '7733', 'p', 'p', '2207', '9181', '7039', '8829', '5427', '341', '943', '6981', '7403', '9757']
answer:

9757740369819433415427