C111112111133131121133133313331333133313331312111133113313232221   >>    C11111211113313112113313331333133313331333131211113311331323222   <<    C111112111133131121133133313331333133313331312111133113313232223   >>      C111112111133131121133133313331333133313331312111133113313232222   >>