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:
6, 15, ['T', 'u', 'v', '5523', '3025', 'P', '2843', '5033', '3237', 'X', 'e', '5147', '849', '9773', '7559', 's', 'L', 'y', '6195', '5073', 't']
answer:
755997738495147eX323750332843P


question:
7, 9, ['4337', '191', 'N', 'B', 'P', 'B', 'G', 'b', '2727', '6213']
answer:
2727bG


question:
15, 17, ['4547', '4013', 'g', 'j', '315', 'y', '3931', '7873', '6431', '3935', 'W', '335', 'w', '3317', 'D', '227', 'y', 'd', '2597', '9195', '4181', '8037', 'Z', '9797', 'G', '5465']
answer:

y227D