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: 2, 7, ['P', 'Q', 'i', '1593', 'M', '8577', 'd', 'Y']

Output: d7758M3951iQ


Input: Consider Input: 1, 17, ['1317', '9121', '9155', 'R', 'K', 'N', 'i', '4379', 'g', '7977', '8483', '5501', '3111', '871', '7481', 'h', 'T', 'Y', 'w', '8907', '3839', '1493', 'g', 'I', 'n']

Output: Th18471781113105538487797g9734iNKR551912197131


Input: Consider Input: 1, 16, ['5187', 'E', 's', 'S', 'B', '6029', '9009', '309', 'A', '9603', 'D', 'y', '6331', 'c', '4387', '4407', 'p', 'M', '8699', 'y', 'G', 'W']


Output: 70447834c1336yD3069A90390099206BSsE7815