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:
2, 2, ['w', 'e']

Ex Output:
e


Ex Input:
10, 27, ['z', '7203', 'd', '1795', '45', '1803', 'L', '2839', '6285', 'W', '1969', 'x', '6565', '8849', '6091', 'M', '7925', '37', 'h', '381', '59', 'O', '3283', 'u', '9831', 'Y', '5701', '7249', 'w']

Ex Output:
1075Y1389u3823O95183h735297M190694885656x9691W


Ex Input:
1, 3, ['E', 'a', '6263', 'N', '2787', 'l', 'C', '8335', '613', '3027', '4939', 'z', 'H', '859', 'B', '6545', 'u', '553', '7561', 'Y', '5973', 'r', '5867', 'Z', 'n']

Ex Output:

3626aE