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, 8, ['1601', 'M', '4289', 'n', 'r', '8973', 'F', 'Y', 'v', '3357']

Output: YF


Input: Consider Input: 14, 17, ['J', '8303', 'I', 'O', 'Y', 'U', '9225', '5315', '8891', '5195', '5805', '8577', 'n', '3621', 'k', '4049', 'k', 'y', '9591', '3465', '9829']

Output: k9404k1263


Input: Consider Input: 4, 10, ['669', '8641', '3529', 'q', 'G', '2933', '4725', 'X', '6023', 'l', 't', '3055', 'I', 'a', '7269', '3747', 'V', 'O', '8941', '8871', '7195', 'x']


Output: l3206X52743392Gq