75
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find $|9i-12|\cdot |3+4i|$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
75
Find $|9i-12|\cdot |3+4i|$.
train