The interior of Xiaoming’s house is 18m long, 10m wide, and 3.2m high. He needs to put wallpaper on the surrounding walls and roof. The area of the door and windows is 23m**2. If the wallpaper is 2.4 yuan per cubic meter, how much is the total cost?
小明家室内长18m，宽10m，高3.2m，要在四周墙壁和屋顶贴壁纸，扣除门和窗户的面积23m**2如果每立方米的壁纸2.4元，一共需要多少元？
<gadget id="calculator">18 * 10</gadget>
<output>180</output>

<gadget id="calculator">18 * 3.2</gadget>
<output>57.6</output>

<gadget id="calculator">10 * 3.2</gadget>
<output>32</output>

<gadget id="calculator">57.6 + 32</gadget>
<output>89.6</output>

<gadget id="calculator">89.6 * 2</gadget>
<output>179.2</output>

<gadget id="calculator">179.2 - 23</gadget>
<output>156.2</output>

<gadget id="calculator">180 + 156.2</gadget>
<output>336.2</output>

<gadget id="calculator">336.2 * 2.4</gadget>
<output>806.88</output>

<result>806.88</result>