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: 3, 8, ['6673', '3503', 'j', 't', 'y', 'q', 'S', '2339', 'B', 'C', 'b', 'K', '3323']

Output: 9332Sqytj


Input: Consider Input: 2, 2, ['a', 'J']

Output: J


Input: Consider Input: 2, 2, ['5019', '365', '1601']


Output: 563