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:
8, 16, ['G', '615', 'N', '8597', 'f', '1837', 'R', '6489', '6643', '7951', 'p', 'q', 'z', '2831', '1655', 'C', 'K', 'H', '2117', '5135', 'U', 'y', 'e', 'i', 'r', 'j', '4779', '5225']
answer:
C16552831zqp795166436489


question:
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']
answer:
598559v928162755829CQ


question:
16, 20, ['V', 'r', '9615', 'z', '2609', 'h', 'X', 'b', '5447', '6881', 'G', '9651', 'U', 'f', 'K', '211', '2823', 'V', 'Q', '6513']
answer:

6513QV2823211