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.
21, 22, ['G', '6417', '4487', '6109', 'R', '6267', '5625', '3845', '5461', '3897', '6087', 'X', 't', '8145', '3553', 'f', 'G', 'X', 'q', '7667', 'w', 's', 'e', '9', 'w', '4389', '7323', '5551', 't']