C111112111133131121133133313331333133313331323133313331333133313233311232222231   >>    C11111211113313112113313331333133313331333132313331333133313331323331123222223   <<    C111112111133131121133133313331333133313331323133313331333133313233311232222233   >>      C111112111133131121133133313331333133313331323133313331333133313233311232222232   >>