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#include <fstream>
using namespace std;
ifstream cin("secv2.in");
ofstream cout("secv2.out");
int n,k,s[50005],mn=1e9,st,fin,st1,mx=-1e9;
void read()
{
cin>>n>>k;
for(int i=1; i<=n; i++)
{
cin>>s[i];
s[i]=s[i]+s[i-1];
}
}
int main()
{
read();
for(int i=k; i<=n; i++)
{
if(s[i-k]<mn)
{
mn=s[i-k];
st=i-k+1;
}
if(s[i]-mn>mx)
{
mx=s[i]-mn;
fin=i;
st1=st;
}
}
cout<<st1<<" "<<fin<<" "<<mx;
return 0;
}