#include <stdio.h>

const int maxn=50001;
int i,N,K,a[maxn],S[maxn],Smax,pmax,pmin;

void cosmin()
{
	int Smin=2000000000;
	Smax=-2000000000;
	for(i=K;i<=N;i++)
	{
		if(S[i-K]<Smin)
		{
			Smin=S[i-K];
			pmin=i-K;
		}
		if(S[i]-Smin>Smax)
		{
			Smax=S[i]-Smin;
			pmax=i;
		}
	}
}

int main()
{
	freopen("secv2.in","r",stdin);
	freopen("secv2.out","w",stdout);
	scanf("%d %d",&N,&K);
	S[0]=0;
	for(i=1;i<=N;i++)
	{
		scanf("%d",&a[i]);
		S[i]=S[i-1]+a[i];
	}
	cosmin();
	printf("%d %d %d",pmin+1,pmax,Smax);
	return 0;
}