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, 7, ['4177', 'T', 'Q', '915', '7823', 'm', '6453']
answer:
3546m3287519QT7714


question:
13, 13, ['1771', 'u', 'w', 'k', 'P', '7297', 'Y', '2223', 'X', 'u', '3067', '19', 'w', 'A', 'b', '4309', 'O', '7215', 'z', '6609', '4479', '3149', '6829', '8597', '4829']
answer:
w


question:
8, 17, ['9271', '3303', 'Y', '1041', '2955', '8071', 'L', 'I', 'x', 'M', '4751', '8543', 'P', 'c', 'n', '3349', 'h', 'S', 'l', 'q', '9693', 'T', '7625', 'L']
answer:

h9433ncP34581574MxI