C3123121111331312121111331333133313331333121333132313331333112331323222221   >>    C312312111133131212111133133313331333133312133313231333133311233132322222   <<    C3123121111331312121111331333133313331333121333132313331333112331323222223   >>      C3123121111331312121111331333133313331333121333132313331333112331323222222   >>