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, 6, ['7675', '2039', 'u', 'w', '8039', 'e', 'q']
answer:
e9308wu93025767


question:
6, 16, ['y', 'M', '5237', '1935', '4057', 'W', '1937', '6517', '717', 'i', '8255', '1011', 'A', '3537', '2411', 'U', 'J', 'a', '1591', '2299', 'W', '8383', '8579', '8183', '7473']
answer:
U11427353A11015528i71771567391W


question:
1, 26, ['d', '7403', 'k', 'D', 'A', 'b', '4175', '8065', 'c', '9373', '3787', 'k', 'T', '8967', 'e', 'C', '485', 'N', '6215', 'I', 'z', '2185', '6145', '1751', '1097', 'S', '4141', 'a', 'T']
answer:

S7901157154165812zI5126N584Ce7698Tk78733739c56085714bADk3047d