《金史·本纪·卷三》
十二月二日，宋主桓投降，当天，回归到汴城。
十二月癸亥，宋主桓降，是日，归于汴城。
On the second day of December, Emperor Huan of Song surrendered and returned to Biancheng on the same day.
<s>[INST] Translate the following Classical Chinese text into English: 十二月癸亥，宋主桓降，是日，归于汴城。 [/INST] On the second day of December, Emperor Huan of Song surrendered and returned to Biancheng on the same day.</s>
Translate the following Classical Chinese text into English: 十二月癸亥，宋主桓降，是日，归于汴城。
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On the second day of December, Emperor Huan of Song surrendered and returned to Biancheng on the same day.
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