The complex numbers $a$ and $b$ satisfy
\[a + \overline{b} = 2 - 7i.\]Find $\overline{a} + b.$
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The complex numbers $a$ and $b$ satisfy
\[a + \overline{b} = 2 - 7i.\]Find $\overline{a} + b.$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2 + 7i
The complex numbers $a$ and $b$ satisfy
\[a + \overline{b} = 2 - 7i.\]Find $\overline{a} + b.$
train