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.

Input: Consider Input: 6, 6, ['X', '939', 'u', 'V', 'Z', 'x', 't', '5703', '5669', 'z', 'D', '7013', '9807', 'N', 's', '5075', 'd', 'T', '1275', '1475', 'r', 'k']

Output: x


Input: Consider Input: 1, 3, ['o', 'o', '4511', '9203', '6071', 'Q', '5337']

Output: 1154oo


Input: Consider Input: 3, 8, ['k', 'A', 'T', 'Z', '9159', 'q', '1267', '6393', 'Q']


Output: 39367621q9519ZT