6只兔子比赛吃萝卜，3只先吃完了，还有几只没吃完？;m8i8t;r
算式：提示(b4H7r0n4N;Y8J*};[;m8i8t;r
答：还有-`9v(l,{/o;@3f7G3P3M4}1]0r只没吃完。;m8i8t;r