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: 5, 9, ['g', 'B', '7695', 'X', 'h', 'A', '693', 'x', 'Q', 'l', 'Q', '9223', 'y', 'a', 'q']

Output: Qx396Ah


Input: Consider Input: 2, 12, ['W', 'R', 'P', '9411', '179', '5175', '7959', 'o', '4285', 'H', '7535', '3423', 'Q', '7813', '611']

Output: 32435357H5824o959757159711149PR


Input: Consider Input: 6, 6, ['o', '2879', '3541', 'P', 'J', 'o', 'w', '1307', 'B', 'A', 'S']


Output: o