C111123313121111121111331333133313331323133313231333133313331333112331211   >>    C11112331312111112111133133313331333132313331323133313331333133311233121   <<    C111123313121111121111331333133313331323133313231333133313331333112331213   >>      C111123313121111121111331333133313331323133313231333133313331333112331212   >>