C2221232323213331311331333133313231333132313232211333323221311331   >>    C222123232321333131133133313331323133313231323221133332322131133   <<    C2221232323213331311331333133313231333132313232211333323221311333   >>      C2221232323213331311331333133313231333132313232211333323221311332   >>