D2311231323331322331313232233132333132312111133132313132311112331   >>    D231123132333132233131323223313233313231211113313231313231111233   <<    D2311231323331322331313232233132333132312111133132313132311112333   >>      D2311231323331322331313232233132333132312111133132313132311112332   >>