C2221232323213331311331333133313231333132313331333233113222221333112131   >>    C222123232321333131133133313331323133313231333133323311322222133311213   <<    C2221232323213331311331333133313231333132313331333233113222221333112133   >>      C2221232323213331311331333133313231333132313331333233113222221333112132   >>