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: 1, 4, ['6047', 'Y', 'p', 'E', '9233', '7139', '6073', '6367', 't', '9173', 'E', 'c', '3651', 'w']

Output: EpY7406


Input: Consider Input: 6, 16, ['y', 'M', '5237', '1935', '4057', 'W', '1937', '6517', '717', 'i', '8255', '1011', 'A', '3537', '2411', 'U', 'J', 'a', '1591', '2299', 'W', '8383', '8579', '8183', '7473']

Output: U11427353A11015528i71771567391W


Input: Consider Input: 12, 13, ['v', 'h', '1977', 'A', '3131', 'V', 'r', '4357', 'i', '9699', 'R', 'a', 'y', '4271', '1479', 'M', 'g', 'H', 'Y', 'L', 'A', '6131', '1447', '8769', 'R', '7375', '9735', '8489', '2241', 'U']


Output: ya