<|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
 In the spring of 2008, a middle school in Liuzhou organized a fundraising activity among the students. On the first day, only 10 people donated, with an average donation of 10 yuan per person. After active promotion, starting from the second day, the number of donors doubled each day, and the average donation per person increased by 5 yuan compared to the previous day. Calculate the total amount of donations by the end of the 5th day (including the 5th day). Express your answer in yuan as a whole number. 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
8000
In the spring of 2008, a middle school in Liuzhou organized a fundraising activity among the students. On the first day, only 10 people donated, with an average donation of 10 yuan per person. After active promotion, starting from the second day, the number of donors doubled each day, and the average donation per person increased by 5 yuan compared to the previous day. Calculate the total amount of donations by the end of the 5th day (including the 5th day). Express your answer in yuan as a whole number.
test