#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n,k,x,start,finish,i,j,maxim=0,a[50001],poz1,poz2,s=0,saux;
int main()
{
fin>>n>>k;
for(int i=1;i<=n;i++)
fin>>a[i];
saux=0;
for(i=1;i<=n;i++)
{
    if(i>=k+1)
    {
        if((i-k)!=start)
        saux=saux+a[i-k];
        if(s-a[start]-saux+a[i]>s+a[i])
        {


            s=s-a[start]-saux+a[i];
            start=i-k+1;
            finish=i;
            saux=0;

        }
        else
        {
            finish=i;
            s=s+a[i];
        }
        if(s>maxim)
        {
            maxim=s;
            poz1=start;
            poz2=finish;
        }
    }
    else
    {s=s+a[i];
    start=1;
    finish=i;
    poz1=1;
    poz2=i;
    maxim=s;}
}
fout<<poz1<<"  "<<poz2<<"  "<<maxim;
    return 0;
}