cuboid fish tank without a cover is 6 decimeters long, 4 decimeters wide, and 3 decimeters high. How many square decimeters of glass is the minimum required to make this fish tank? (not counting joints)
一个长方体无盖鱼缸，长6分米，宽4分米，高3分米．制作这个鱼缸至少需要多少平方分米玻璃？(接头处不算)
<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">6 * 3 * 2</gadget>
<output>36</output>

<gadget id="calculator">4 * 3 * 2</gadget>
<output>24</output>

<gadget id="calculator">24 + 36 + 24</gadget>
<output>84</output>

<result>84</result>