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: 13, 20, ['8627', '7993', 'N', 'p', 'n', 'v', 'T', 'L', 'z', '2929', 'a', 'D', '8465', 'R', '8803', 'q', '1069', 'p', '7231', '9581', '1689', 'b', '8773', 'P', 'a', 'L', 't']

Output: 18591327p9601q3088R5648


Input: Consider Input: 2, 3, ['4601', '1107', 'R']

Output: R7011


Input: Consider Input: 6, 6, ['9493', 'a', 'A', '1453', 'f', '4939', '5537', '5463', 'e', '1473', 'k', 'D', '1593', 'E', 'A', '749', '6545']


Output: 9394


