140
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The base three number $12012_3$ is equal to which base ten number?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
140
The base three number $12012_3$ is equal to which base ten number?
train