C1111121111331311211331333133313331333133313232212111112111133133313223322231   >>    C111112111133131121133133313331333133313331323221211111211113313331322332223   <<    C1111121111331311211331333133313331333133313232212111112111133133313223322233   >>      C1111121111331311211331333133313331333133313232212111112111133133313223322232   >>