C2221232323213331311331333133313231333132313231333113221313131221   >>    C222123232321333131133133313331323133313231323133311322131313122   <<    C2221232323213331311331333133313231333132313231333113221313131223   >>      C2221232323213331311331333133313231333132313231333113221313131222   >>