C2221232323213331311331333133313231333132313231333113223213112311   >>    C222123232321333131133133313331323133313231323133311322321311231   <<    C2221232323213331311331333133313231333132313231333113223213112313   >>      C2221232323213331311331333133313231333132313231333113223213112312   >>