Do you mean that you think you can find out the answer to it?" said the March...

Do you mean that you think you can find out the answer to it?" said the March Hare.
"Exactly so," said Alice.
"Then you should say what you mean," the March Hare went on.
"I do," Alice hastily replied; "at least--at least I mean what I say--that's the same thing, you know.