C2221232323213331311331333133313231333132313231333113221332211331   >>    C222123232321333131133133313331323133313231323133311322133221133   <<    C2221232323213331311331333133313231333132313231333113221332211333   >>      C2221232323213331311331333133313231333132313231333113221332211332   >>