<|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
 An architect built a house with a total of 50 rooms, spread across five floors. In this house, 40% of the rooms are bedrooms, and the remaining rooms are bathrooms, living rooms, and a kitchen. If the second floor has eight bedrooms, the third floor has six bedrooms, the fourth floor has twelve bedrooms, and the fifth floor has two bedrooms, how many bedrooms does the first floor have? 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
20
An architect built a house with a total of 50 rooms, spread across five floors. In this house, 40% of the rooms are bedrooms, and the remaining rooms are bathrooms, living rooms, and a kitchen. If the second floor has eight bedrooms, the third floor has six bedrooms, the fourth floor has twelve bedrooms, and the fifth floor has two bedrooms, how many bedrooms does the first floor have?
test