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, 10, ['5537', 'w', '29', '6133', '7949', 'f', 'c', '3725', '2943', 'W', 'U', '1905', 'l', 'Z', 'r']
answer:
W29433725cf79496133


question:
1, 1, ['5765', 'o', 'u', 'M', 'A', 'O', '5741', 'R', 'z', '5939', '4693', 'g', '9285']
answer:
5765


question:
18, 20, ['A', 'b', 'R', 't', '7799', 'i', '1299', 'C', '1925', '7093', '1785', '845', '4087', 'T', 'u', 'u', '8509', '3745', 'Q', '3195', 'G', '5411', 'q', 'S', '2697', '2641', 'T', 'T', '5901', '8205']
answer:

3195Q3745