C111123313331323113313331333133313331323112133313331333121111113313331333113231   >>    C11112331333132311331333133313331333132311213331333133312111111331333133311323   <<    C111123313331323113313331333133313331323112133313331333121111113313331333113233   >>      C111123313331323113313331333133313331323112133313331333121111113313331333113232   >>