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: 7, 9, ['s', '3175', '1431', 'a', 'u', '7265', 'N', 'H', '1217', 'x', 'u', 'a', 'c', 'n', 'b', 'J', 'B', '6907', 'D', '6691', 'N', '7959', 'm']

Output: 7121HN


Input: Consider Input: 6, 8, ['u', 'y', '5599', 'i', 'Z', 'F', '8907', 'A', 'l', '8821', 'B', 'G', 'd']

Output: A7098F


Input: Consider Input: 3, 16, ['M', 'Q', '9419', '4625', '5743', 'U', 'b', 'g', 'N', 'v', '1475', '491', '5385', '9377', '8015', 'q', '5575', '4941', '569', '5157', '1049', 'Z', '3005']


Output: q5108773958351945741vNgbU347552649149