D231123132333132233131323223313233313231211113313231323123231121   >>    D23112313233313223313132322331323331323121111331323132312323112   <<    D231123132333132233131323223313233313231211113313231323123231123   >>      D231123132333132233131323223313233313231211113313231323123231122   >>