《元史·本纪·卷十三》
二十八日，下诏按照旧的规定，凡盐引，一张为四百斤，价格为十两银子，以之折合成钱钞为二十贯，在上都经商的抽取六十分之一的税。
庚子，诏依旧制，凡盐一引四百斤，价银十两，以折今钞为二十贯，商上都者，六十而税一。
On the 28th, the emperor issued an imperial decree that according to the old regulations, every salt certificate is 400 jin, and the price is ten taels of silver, and twenty guan in banknotes. For those doing business in Shangdu, a tax of one sixty-first is levied.
<s>[INST] Rewrite the following English passage in the style of Classical Chinese: On the 28th, the emperor issued an imperial decree that according to the old regulations, every salt certificate is 400 jin, and the price is ten taels of silver, and twenty guan in banknotes. For those doing business in Shangdu, a tax of one sixty-first is levied. [/INST] 庚子，诏依旧制，凡盐一引四百斤，价银十两，以折今钞为二十贯，商上都者，六十而税一。</s>
Rewrite the following English passage in the style of Classical Chinese: On the 28th, the emperor issued an imperial decree that according to the old regulations, every salt certificate is 400 jin, and the price is ten taels of silver, and twenty guan in banknotes. For those doing business in Shangdu, a tax of one sixty-first is levied.
user
庚子，诏依旧制，凡盐一引四百斤，价银十两，以折今钞为二十贯，商上都者，六十而税一。
assistant