C2221232323213331311331333133313231333132313232211333133313331131   >>    C222123232321333131133133313331323133313231323221133313331333113   <<    C2221232323213331311331333133313231333132313232211333133313331133   >>      C2221232323213331311331333133313231333132313232211333133313331132   >>