D12121323331322331313232223132313231333132313223313123231323231   >>    D1212132333132233131323222313231323133313231322331312323132323   <<    D12121323331322331313232223132313231333132313223313123231323233   >>      D12121323331322331313232223132313231333132313223313123231323232   >>