1992+1994+1996+1998+2000+2002+2004+2006+2008=how many.
1992+1994+1996+1998+2000+2002+2004+2006+2008=多少．
<gadget id="calculator">1_992 + 2_008</gadget>
<output>4_000</output>

<gadget id="calculator">1_994 + 2_006</gadget>
<output>4_000</output>

<gadget id="calculator">1_996 + 2_004</gadget>
<output>4_000</output>

<gadget id="calculator">1_998 + 2_002</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 + 4_000 + 4_000 + 4_000 + 2_000</gadget>
<output>18_000</output>

<result>18_000</result>