2006*2006*2006-2006*2006-2005=how much.
2006*2006*2006-2006*2006-2005=多少．
<gadget id="calculator">2_006 * 2_006 * 2_006</gadget>
<output>8_072_216_216</output>

<gadget id="calculator">2_006 * 2_006</gadget>
<output>4_024_036</output>

<gadget id="calculator">8_072_216_216 - 4_024_036 - 2_005</gadget>
<output>8_068_190_175</output>

<result>8_068_190_175</result>