Obviously the room needs to be repainted. The room is 5 meters long, 4 meters wide and 3 meters high. To paint the top surface and surrounding walls of the room, excluding the area of 5 square meters of doors and windows, how many square meters is the area to be painted?
明明的房间要粉刷一新，房间长5米，宽4米，高3米．要粉刷房间的顶面和四周墙壁，除去门窗面积5平方米，要粉刷的面积是多少平方米？
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">5 * 3 * 2</gadget>
<output>30</output>

<gadget id="calculator">4 * 3 * 2</gadget>
<output>24</output>

<gadget id="calculator">24 - 5</gadget>
<output>19</output>

<gadget id="calculator">20 + 30 + 19</gadget>
<output>69</output>

<result>69</result>