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, 3, ['o', 'o', '4511', '9203', '6071', 'Q', '5337']
answer:
1154oo


question:
22, 26, ['V', 'O', '511', 'c', '4015', 'P', 'R', 'L', '115', 'L', '6809', 'S', '2397', 'X', 'e', 'Y', 'I', 'O', '8125', 'u', 'r', '9403', 'Q', 'i', '5835', 'U', 'm']
answer:
U5385iQ3049


question:
1, 21, ['g', '7143', '4203', '5531', '7593', '2341', 'd', 'D', '1735', 'l', '487', '5849', 'a', 'p', '445', 'j', 'c', 'P', '9825', '6637', 'S', '3667', 'Y', 'F']
answer:

S73665289Pcj544pa9485784l5371Dd14323957135530243417g