C1111133313331323223313331333133313331323131211113313113313223313222122311231   >>    C111113331333132322331333133313331333132313121111331311331322331322212231123   <<    C1111133313331323223313331333133313331323131211113313113313223313222122311233   >>      C1111133313331323223313331333133313331323131211113313113313223313222122311232   >>