Your best friend, the rabbit, was coming out of his burrow one morning and you happened to be nearby!
"Good morning, friend!" said the rabbit.
"I've got a puzzle for you... Think you can get me something to drink?"
"Hmm... What do you mean?" you replied.
The rabbit merely chuckled and gave you a small scrap of paper. With that, he continued to burrow into the ground!
What did the rabbit want to drink?
Since someone has already figured out the first part, I won't bother with hints about that. For the second part, a more general form of the numbers would be
6 4 1 3 3 7, though that won't be exactly what the rabbit wanted to drink!