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, 18, ['h', 'c', 'J', 'C', '2371', '7267', 'T', 'W', '1277', 's', 'g', '4555', 'n', 'g', '1535', '4369', '9577', 'R', 'p', '7441', 'r', '3533', 'h', '1045', '2211', 'g', '6349', 'i', '9305', '5295']
answer:
R775996345351gn5554gs7721WT76271732CJch


question:
1, 3, ['4101', '9767', 'q', 'Z', '6853', '3643']
answer:
q76791014


question:
13, 19, ['F', 'W', '3451', '2021', 'N', 'D', '3929', 'I', '4011', 'v', 'e', 'K', 'B', '8431', '3677', '2851', 'D', '7191', '5511', '1271', '7597', 'B', 'N', '2333', 'V', '7745', 'A']
answer:

11551917D158277631348B