<|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
 There are 4 different brands of toy cars, each with 2 cars (identical cars are of the same brand). They are to be placed in 4 garages (each garage holds 2 cars). Calculate the number of different ways to arrange the cars such that exactly 2 garages have cars of the same brand. Express your answer as a single integer. 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
72
There are 4 different brands of toy cars, each with 2 cars (identical cars are of the same brand). They are to be placed in 4 garages (each garage holds 2 cars). Calculate the number of different ways to arrange the cars such that exactly 2 garages have cars of the same brand. Express your answer as a single integer.
test