To make two cuboid goldfish bowls without a cover, the length is 8 decimeters, the width is 6 decimeters, and the height is 7 decimeters. How many square decimeters of glass do you need at least?
做两个无盖的长方体金鱼缸，长8分米，宽6分米，高7分米，至少需要多少平方分米的玻璃？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">8 * 7</gadget>
<output>56</output>

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<gadget id="calculator">56 + 42</gadget>
<output>98</output>

<gadget id="calculator">98 * 2</gadget>
<output>196</output>

<gadget id="calculator">48 + 196</gadget>
<output>244</output>

<gadget id="calculator">244 * 2</gadget>
<output>488</output>

<result>488</result>