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:
5, 7, ['193', 's', '6617', 'a', 'Y', 'e', '8931', '9801', '3025', '4753', 'c', 'n', '6923', '3925']
answer:
1398eY


question:
3, 10, ['s', '3299', 'K', 'D', '4621', '9075', 'K', '6987', 'S', '9829', 'm', 'I', '3797']
answer:
9289S7896K57091264DK


question:
17, 25, ['F', 'm', 'c', 'c', '161', '9841', '4387', 'y', 'Y', '1999', 'G', 'z', 'u', 'm', '1853', '4411', '4213', '6429', 'F', '5041', '8889', '2813', 'K', 'a', 'D', 'A', '3017']
answer:

DaK318298881405F92463124