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:
14, 15, ['8571', '9637', 'o', '7821', '3579', 'S', '6353', 'Z', 'D', 'a', '4885', 'P', 'J', 'J', 'U', '2133', '5421', 'F', '4243', 'i', '8035', 'G', '1391', 'p', 'l', '9621', 'y', '145']
answer:
UJ


question:
4, 6, ['691', 'Q', 'X', 'A', '2501', '7941', 'e', '8967', 'm', '9729', 'O', 't', '7609', 'z', 'Z', 'C', '6027', '2363']
answer:
79412501A


question:
1, 1, ['J', '5675', 'w', 'a', '6649', 'g']
answer:

J