《旧唐书·本纪·卷三》
七日，封皇子福为赵王。
乙亥，封皇子福为赵王。
On the seventh day, crowned prince Fu as the King of Zhao.
<s>[INST] Transpose the following Modern Chinese text into Classical Chinese: 七日，封皇子福为赵王。 [/INST] 乙亥，封皇子福为赵王。</s>
Transpose the following Modern Chinese text into Classical Chinese: 七日，封皇子福为赵王。
user
乙亥，封皇子福为赵王。
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