48480
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute: $55\times1212-15\times1212$ .
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
48480
Compute: $55\times1212-15\times1212$ .
train