C1111133313331323223313331333133313113313222112111133132313333121   >>    C111113331333132322331333133313331311331322211211113313231333312   <<    C1111133313331323223313331333133313113313222112111133132313333123   >>      C1111133313331323223313331333133313113313222112111133132313333122   >>