D2311231323331322331313232233132333132312111133132313231312312231   >>    D231123132333132233131323223313233313231211113313231323131231223   <<    D2311231323331322331313232233132333132312111133132313231312312233   >>      D2311231323331322331313232233132333132312111133132313231312312232   >>