#include <iostream>
#include <fstream>
using namespace std;
ifstream fin ("secv2.in");
ofstream fout ("secv2.out");
int s[50001],i,n,Max=-25001,inc,sf,ant,k;
int main()
{
    fin>>n>>k;
    for (i=1;i<=n;i++)
    {fin>>s[i];
     s[i]+=s[i-1];
    }

     for (i=k;i<=n;i++)
     {
         if (s[ant]>s[i-k])
            ant=i-k;

         if (s[i]-s[ant]>Max)
            Max=s[i]-s[ant],inc=ant+1,sf=i;


     }
     fout<<inc<<" "<<sf<<" "<<Max;
    return 0;
}