<|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
 A person plans to process 408 parts in 15 days. In the first three days, he processes 24 parts each day. Calculate the minimum number of parts he needs to process each day for the remaining days to complete the task ahead of schedule. Express your answer as an integer number of parts per day. 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
29
A person plans to process 408 parts in 15 days. In the first three days, he processes 24 parts each day. Calculate the minimum number of parts he needs to process each day for the remaining days to complete the task ahead of schedule. Express your answer as an integer number of parts per day.
test