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, 1, ['9543', 'z']
answer:
9543


question:
10, 18, ['p', '5729', '2319', 'D', 'u', 'C', '5549', 'l', '6565', '2055', 'J', '6501', '9961', 'q', 'T', 'b', 'c', 't', '3407', 'M', '3705', 'h', '4409', '8927', 'J', '3701']
answer:
tcbTq99616501J2055


question:
11, 21, ['J', 'g', 'K', '1863', '5511', '6655', 'Q', '8357', 'X', '3215', 'h', '6807', 'c', 'K', 'n', '4327', '8279', '9431', 't', 'f', '4999', '4045', '6041', 'M', '6843']
answer:

4999ft943182794327nKc6807h