Xiaohong and Xiaofang spend the same amount of money on stationery. Xiaohong buys 1 pen and 4 same notebooks, and Xiaofang buys 12 notebooks that are the same as Xiaohong. How many notebooks cost the same as 1 pen.
小红和小芳花同样多的钱买文具．小红买1支钢笔和4本同样的笔记本，小芳买了12本和小红相同的笔记本．多少本笔记本的价钱与1支钢笔的价钱相同．
<gadget id="calculator">12 - 4</gadget>
<output>8</output>

<result>8</result>