Xiaohong's bedroom is 5 meters long, 3 meters wide, and 3 meters high. Excluding the 5 square meters of doors and windows, the four walls and the roof of the room are covered with wallpaper. What is the minimum area of wallpaper needed to decorate this room?
小红的卧室长5米，宽3米，高3米．除去门窗5平方米，房间的四壁和屋顶都贴上墙纸，布置这个房间至少需要多大面积的墙纸？
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

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

<gadget id="calculator">3 * 3 * 2</gadget>
<output>18</output>

<gadget id="calculator">18 - 5</gadget>
<output>13</output>

<gadget id="calculator">15 + 30 + 13</gadget>
<output>58</output>

<result>58</result>