If the digits represented by $A$ and $B$ satisfy the following subtraction problem $$ \begin{array}{c@{}c@{\;}c@{}c@{}c@{}c} & & & & A & B_4\\ &- & & & B & A_4\\ \cline{2-6} & & & & & 3_4\\ \end{array} $$what is the nonnegative difference of the digits represented by $A$ and $B$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
If the digits represented by $A$ and $B$ satisfy the following subtraction problem $$ \begin{array}{c@{}c@{\;}c@{}c@{}c@{}c} & & & & A & B_4\\ &- & & & B & A_4\\ \cline{2-6} & & & & & 3_4\\ \end{array} $$what is the nonnegative difference of the digits represented by $A$ and $B$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
1
If the digits represented by $A$ and $B$ satisfy the following subtraction problem $$ \begin{array}{c@{}c@{\;}c@{}c@{}c@{}c} & & & & A & B_4\\ &- & & & B & A_4\\ \cline{2-6} & & & & & 3_4\\ \end{array} $$what is the nonnegative difference of the digits represented by $A$ and $B$?
train