#include <stdio.h>
using namespace std;
int n,k,A[50001],S[50001];
int mi,pmi,ma,pma,x;

FILE *f,*g;

void cit_sume()
{
	fscanf(f,"%d %d",&n,&k);
	for (int i=1;i<=n;++i)
	{
		fscanf(f,"%d",&A[i]);
		S[i]=S[i-1]+A[i];
	}
}

void rezolva()
{
	S[0]=0;
	mi=1000000;
	ma=-1000000;
	for (int i=1;i<=n;++i)
	{
		if (S[i-k]<mi && i-k>=0)
		{
			mi=S[i-k];
			pmi=i-k;
		}
			x=S[i]-mi;
			if (x>ma)
			{
				ma=x;
				pma=i;
			}
	}
	fprintf(g,"%d %d %d",pmi+1,pma,ma);
}

int main()
{
	f=fopen("secv2.in","r");
	g=fopen("secv2.out","w");
	cit_sume();
	rezolva();
	fclose(f);
	fclose(g);
	return 0;
}