D23112313233313223313132322331323132333132312111133131313231121   >>    D2311231323331322331313232233132313233313231211113313131323112   <<    D23112313233313223313132322331323132333132312111133131313231123   >>      D23112313233313223313132322331323132333132312111133131313231122   >>