C111123313121111121111331333133313331323132333133313331322331333211231211   >>    C11112331312111112111133133313331333132313233313331333132233133321123121   <<    C111123313121111121111331333133313331323132333133313331322331333211231213   >>      C111123313121111121111331333133313331323132333133313331322331333211231212   >>