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, 18, ['1111', 'k', 'b', 'q', 'y', '2453', 'Y', '1229', '4687', '3949', 'a', 'e', '2695', '9221', 'T', 'i', '189', 'E', '7855', '6285', '7133', 'V', 'm', 'A', '7085', '8123', '4039', 't', '2515', '1707']