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, 1, ['f', 'E', 'G', '9657']

Output: f


Input: Consider Input: 9, 9, ['5503', 'f', 'g', 'B', '3003', '229', '4613', 'C', 'j', 'o']

Output: j


Input: Consider Input: 3, 5, ['6225', 'z', '6501', 'K', 'H', '3521', '523', 'y', '9823', '1245', 'p', 'Y', '4313']


Output: HK1056