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:
1, 15, ['157', 'D', '8321', 'g', 't', '7339', 'y', '1813', '3049', 'h', '4047', 'S', 'V', 'T', '5295', 'h', '2861']
answer:
5295TVS4047h30491813y7339tg8321D157


question:
2, 22, ['4169', '3509', '9747', '7311', 'F', '9721', 'i', '8583', 'w', '7277', '2343', 'v', '9485', '6471', '8293', '2923', 'R', '9953', '3221', 'W', '265', 'o', '8391', '473']
answer:
o265W32219953R2923829364719485v23437277w8583i9721F731197473509


question:
7, 21, ['Q', 'O', 't', 'U', 'j', 'h', 'X', 'm', '3805', '2443', '8247', '8541', 'J', 'K', 'o', '5287', '2291', '2435', 'U', '4289', 'n', 'A', '9327', 'H', 'x', 'W', 'E', '2659', '7503']
answer:

n4289U243522915287oKJ8541824724433805mX