C111112111133131121133133313331333121111133313331333232223323221   >>    C11111211113313112113313331333133312111113331333133323222332322   <<    C111112111133131121133133313331333121111133313331333232223323223   >>      C111112111133131121133133313331333121111133313331333232223323222   >>