A particular number written in base 3 requires three digits (${\_ \_ \_}_3$). When the number is written in base 3 and 4, the digits are the reverse of each other. What is this number expressed in base 10?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A particular number written in base 3 requires three digits (${\_ \_ \_}_3$). When the number is written in base 3 and 4, the digits are the reverse of each other. What is this number expressed in base 10?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
22
A particular number written in base 3 requires three digits (${\_ \_ \_}_3$). When the number is written in base 3 and 4, the digits are the reverse of each other. What is this number expressed in base 10?
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