A classroom with a length of 8 meters, a width of 6 meters, and a height of 4 meters has a total area of 35 square meters. To paint the walls and roof, what is the area to be painted?
一间长8米，宽6米，高4米的教室，教室门窗和黑板面积一共是35平方米．要粉刷四壁和屋顶，粉刷的面积是多少？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">6 * 4 * 2</gadget>
<output>48</output>

<gadget id="calculator">8 * 4 * 2</gadget>
<output>64</output>

<gadget id="calculator">48 + 48 + 64</gadget>
<output>160</output>

<gadget id="calculator">160 - 35</gadget>
<output>125</output>

<result>125</result>