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.

6, 23, ['813', '4817', '7933', '4081', 'J', 'g', '1547', 'Y', '7747', 't', '3133', '1013', 'a', 'Z', 'b', 'F', '5347', '2121', '3073', 'O', 'F', 'l', '7473', 'k']
3747lFO370312127435FbZa31013313t7477Y7451g