<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 Using 42 cubes with an edge length of 1cm to glue together into a solid brick with rectangular faces, if the perimeter of its base is 18cm, calculate the height of this solid brick. Express your answer in centimeters (cm). Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
3
Using 42 cubes with an edge length of 1cm to glue together into a solid brick with rectangular faces, if the perimeter of its base is 18cm, calculate the height of this solid brick. Express your answer in centimeters (cm).
test