<|system|>
Find the center of the circle with equation $x^2 - 2x + y^2 - 4y - 28 = 0$.</s>.
<|user|>
Can you answer based on context?
<|assistant|>
Completing the square, we get $(x - 1)^2 + (y - 2)^2 = 33$. Therefore, the center of the circle is $(1, 2)$.