How many positive even perfect cubes are less than 2008?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many positive even perfect cubes are less than 2008?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
How many positive even perfect cubes are less than 2008?
train