D12121323331322331313232223132313231323133313223313231313232213231   >>    D1212132333132233131323222313231323132313331322331323131323221323   <<    D12121323331322331313232223132313231323133313223313231313232213233   >>      D12121323331322331313232223132313231323133313223313231313232213232   >>