In how many ways can the letters of the word BANANA be rearranged such that the new word does not begin with a B?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
In how many ways can the letters of the word BANANA be rearranged such that the new word does not begin with a B?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
50
In how many ways can the letters of the word BANANA be rearranged such that the new word does not begin with a B?
train