#include <fstream>
#define LL long long int
using namespace std;
long long int sum[50001];
int main()
{
    ifstream f("secv2.in");
    ofstream g("secv2.out");
    LL  i,n,k,poz1,fina1,a;
    LL MAX=-(1LL<<60),mins=(1LL<<60),mind;
    f>>n;
    f>>k;
    for(i=1;i<=n;i++)
    {
       f>>a;
       sum[i]+=sum[i-1]+a;
    }
      for (i=k; i<=n; i++){
        if (mins>sum[i-k])
        {
            mins=sum[i-k];
            mind=i-k;
        }
        if (sum[i]-mins>MAX)
            {
                MAX=sum[i]-mins;
                poz1=mind+1;
                fina1=i;
            }
        }
    g<<poz1<<" "<<fina1<<" "<<MAX;
    f.close();
    g.close();

    return 0;
}