D231123313223313132313232213132313231333131133132322132311211311   >>    D23112331322331313231323221313231323133313113313232213231121131   <<    D231123313223313132313232213132313231333131133132322132311211313   >>      D231123313223313132313232213132313231333131133132322132311211312   >>