#include <fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n,k,i,p,v[50005],s,mx=-1000000000,p1,p2,s1,sp;
int main()
{fin>>n>>k;
 p=0;
 for(i=1;i<=n;i++)
    {fin>>v[i];s+=v[i];
     if(i-k>p)
       {s1+=v[i-k];
        if(s1<0&&s1<sp){p=i-k;sp=s1;}
        if(s-sp>mx){mx=s-sp;p1=p+1;p2=i;}
        //fout<<s<<" "<<sp<<"\n";
       }
       else if(i-k==p){p1=1;p2=i;mx=s;}
    }
    fout<<p1<<" "<<p2<<" "<<mx;
}