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: 1, 1, ['4571', '3997']

Output: 1754


Input: Consider Input: 2, 4, ['B', '5601', 'v', '7431', 'z']

Output: 1347v1065


Input: Consider Input: 2, 3, ['5131', 'V', 'J', '8475', 't', 'p', 'r', 'x', '7417']


Output: JV