The school has 3 teaching buildings, each with 5 floors, and each floor has 12 classrooms. How many classrooms does the school have in total?
学校有3幢教学楼，每幢5层，每层12间教室，学校一共有多少间教室？
<gadget id="calculator">12 * 5 * 3</gadget>
<output>180</output>

<result>180</result>