C1111133313331323223313331333133313331323131211113312111133222323213121   >>    C111113331333132322331333133313331333132313121111331211113322232321312   <<    C1111133313331323223313331333133313331323131211113312111133222323213123   >>      C1111133313331323223313331333133313331323131211113312111133222323213122   >>