instruction:
In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
question:
1, 17, ['1317', '9121', '9155', 'R', 'K', 'N', 'i', '4379', 'g', '7977', '8483', '5501', '3111', '871', '7481', 'h', 'T', 'Y', 'w', '8907', '3839', '1493', 'g', 'I', 'n']
answer:
Th18471781113105538487797g9734iNKR551912197131


question:
3, 13, ['2889', '2395', '4059', '2829', '4333', '5199', '3747', 'm', 'r', 'u', 'Z', '9509', '5979', 'o', 'Q', 'Q', '1497', '1673', 'l', '3899', 'D']
answer:
97959059Zurm74739915333492829504


question:
6, 15, ['4121', '6025', 'E', '6789', '6997', '2783', '4361', 'r', 'Y', '6411', 'c', 'S', '9087', '2857', 'z', '3385', '931', '3081', '1401', 'W', 'e', 'h', 'u', 'X', 'l', '713', '5583']
answer:

z75827809Sc1146Yr16343872