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.

Ex Input:
1, 1, ['4865', 'y']

Ex Output:
5684


Ex Input:
6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']

Ex Output:
5333T


Ex Input:
12, 12, ['2413', 'g', 'C', '8793', 'h', 'v', 'R', 'U', '2873', 'k', '5405', '2521', '6793', '8891']

Ex Output:

1252