D121213233313223313132322231323132313331323132233131323331323133313231211   >>    D12121323331322331313232223132313231333132313223313132333132313331323121   <<    D121213233313223313132322231323132313331323132233131323331323133313231213   >>      D121213233313223313132322231323132313331323132233131323331323133313231212   >>