There are 32 seats in a row in the auditorium. Xiaofang, Xiaoying and Xiaohong plan to sit in the next three seats in the second row. Xiaofang sits on the right of Xiaoying, and Xiaohong sits on the right of Xiaofang. How many different ways of sitting?
礼堂里一排有32个座位，小芳、小英和小红打算坐在第二排相邻的三个座位上，小芳坐在小英的右边，小红坐在小芳的右边，一共有多少种不同的坐法？
<gadget id="calculator">32 - 2</gadget>
<output>30</output>

<result>30</result>