2009*(1+(1/2)+(1/3)+…+(1/2008))-(1+(1+(1/2))+(1+(1/2)+(1 /3))+...+(1+(1/2)+(1/3)+...+(1/2008)))=how much.
2009*(1+(1/2)+(1/3)+…+(1/2008))-(1+(1+(1/2))+(1+(1/2)+(1/3))+…+(1+(1/2)+(1/3)+…+(1/2008)))=多少．
<result>2_008</result>