C2221232323213331311331333133313231333132313331333322313211122321   >>    C222123232321333131133133313331323133313231333133332231321112232   <<    C2221232323213331311331333133313231333132313331333322313211122323   >>      C2221232323213331311331333133313231333132313331333322313211122322   >>