Given the task definition and input, reply with output. 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.

4, 11, ['p', '8107', 'V', 'm', '2411', 'P', '9771', 'A', '1385', 'J', 'W', 's', 'J', 'S', '3521', 'Q', '671', '291', '831', 'Q', 'z', 'A', 'f', '111', 'w', '1029', '2971', 'd', '827', '1459']

WJ5831A1779P1142m