A building has 8 floors and is divided into 4 units. Each unit has 2 households on each floor. How many households can this building live in?
一座楼房有8层，分为4个单元．每个单元每层住2户，这座楼房一共可以住多少户？
<gadget id="calculator">2 * 4 * 8</gadget>
<output>64</output>

<result>64</result>