The teaching building of Hope Primary School has 4 floors, each floor has 8 classrooms, and each classroom has 45 desks. How many desks are there in Hope Primary School?
希望小学的教学楼有4层，每层有8间教室，每间教室有45张课桌，希望小学一共有多少张课桌？
<gadget id="calculator">8 * 4 * 45</gadget>
<output>1_440</output>

<result>1_440</result>