D12121323331322331313232223132313231333132313223313232112323132313231311   >>    D1212132333132233131323222313231323133313231322331323211232313231323131   <<    D12121323331322331313232223132313231333132313223313232112323132313231313   >>      D12121323331322331313232223132313231333132313223313232112323132313231312   >>