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, 9, ['7453', '7415', 's', 'O', '1161', 'G', 'N', '5925', '3367', 'f', '7739', 'b', 'y', 'o', '2431', 'Y']
answer:
76335295NG1611


question:
3, 5, ['l', '7281', 'I', '9805', '9063', 'T', 'f', 'k', 'X', 'D', 'j', '9739']
answer:
36095089I


question:
17, 18, ['X', 't', '1999', 'C', 'J', '283', 'Q', 'm', '3193', 'o', '4077', 'Y', '8989', 'h', 'S', 's', '8837', 'K', '4435', '4907', 'S']
answer:

K7388