C2221232323213331311331333133313231333132313331333233113222311232233131321   >>    C222123232321333131133133313331323133313231333133323311322231123223313132   <<    C2221232323213331311331333133313231333132313331333233113222311232233131323   >>      C2221232323213331311331333133313231333132313331333233113222311232233131322   >>