C11112331312111112111133133313331312111111322331333133323213223331   >>    C1111233131211111211113313331333131211111132233133313332321322333   <<    C11112331312111112111133133313331312111111322331333133323213223333   >>      C11112331312111112111133133313331312111111322331333133323213223332   >>