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#include <fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n,k,i,v[50001],s[50001],smin=25000,smax=-25000,pi,pf,ppi;
int main()
{
fin>>n>>k;
for(i=1;i<=n;i++)
{
fin>>v[i];
s[i]=s[i-1]+v[i];
if(i>=k && smin>s[i-k])
{
smin=s[i-k];
ppi=i-k+1;
}
if(i>=k && smax<s[i]-smin)
{
smax=s[i]-smin;
pf=i;
pi=ppi;
}
}
fout<<pi<<' '<<pf<<' '<<smax;
fout.close();
return 0;
}