2
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many prime numbers are between 20 and 30?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2
How many prime numbers are between 20 and 30?
train