Xiaoling's living room is 5 meters long, 3.6 meters wide, and 3 meters high, with a total area of 10 square meters for doors and windows. Their family plans to paste wallpaper on the four walls of the living room, and the price of the wallpaper per square meter is 30 yuan. How much is the minimum cost to buy wallpaper?
小玲家的客厅长5米，宽3.6米、高3米，门窗面积共10平方米．他们家准备在客厅的四壁贴上壁纸，每平方米壁纸的价格是30元．买壁纸至少要用多少钱？
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">3 * 3.6</gadget>
<output>10.8</output>

<gadget id="calculator">15 + 10.8</gadget>
<output>25.8</output>

<gadget id="calculator">25.8 * 2</gadget>
<output>51.6</output>

<gadget id="calculator">51.6 - 10</gadget>
<output>41.6</output>

<gadget id="calculator">41.6 * 30</gadget>
<output>1_248</output>

<result>1_248</result>