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: 3, 8, ['s', '8395', '7689', 'x', 'P', '5953', 'X', 'D']

Output: DX3595Px9867


Input: Consider Input: 4, 12, ['H', 'r', 'n', 'Y', '173', '9285', '3105', '883', 'n', '8915', '6923', 'S', 'T', 'o', '1639', '8421', 'g']

Output: S32965198n38850135829371Y


Input: Consider Input: 3, 7, ['w', '5041', 'R', 'v', 'z', '3393', 'U', '5315', '6921', 'T', 'G', 'O', '5631', '8665', '3099', '877', '2023', '8215', '8419', '1295', 'F', 'i', 'r', 'k', '6311', '5335', '1597']


Output: U3933zvR