C2221232323213331311331333133313231333132313231333113221313232221   >>    C222123232321333131133133313331323133313231323133311322131323222   <<    C2221232323213331311331333133313231333132313231333113221313232223   >>      C2221232323213331311331333133313231333132313231333113221313232222   >>