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: 10, 13, ['D', 'A', '4221', '7301', '1937', 'r', '5105', 'q', 'F', 'j', '9441', '6391', '7081', 'l', '6569', 'i', '8871', '5985']

Output: 180719361449j


Input: Consider Input: 3, 4, ['435', 'K', '8051', '7159']

Output: 95171508


Input: Consider Input: 7, 13, ['7551', 'c', '7677', 'I', 'v', '8401', 'z', 'A', 'W', '8627', 'N', 'O', 'K', '319', '4805', 'g', 'I', '2151', 'f', 'b', '595']


Output: KON7268WAz