#include<iostream.h>
#include<fstream.h>
ifstream f("secv2.in");
ofstream g("secv2.out");
int i,a[40000],u,x,y,n,max,sum,k,p,s[40000];
int main()
{
	f>>n>>k;
	max=-1234567891;
	for (i=1; i<=n; i++)
	{
	    f>>a[i];
	    s[i]=s[i-1]+a[i];
	}
	sum=s[k];
	max=s[k];
	p=1;
	x=1;
	u=k;
	y=k;
	for (i=k+1; i<=n; i++)
	{
		if (sum+a[i]<s[i]-s[i-k])
		{
			sum=s[i]-s[i-k];
			u=i;
			p=i-k+1;
		}
		else
		{
			sum+=a[i];
			u=i;
		}
		if (sum>max)
		{
			max=sum;
			x=p;
			y=u;
		}
	}
	g<<x<<" "<<y<<" "<<max;
	f.close();
	g.close();
	return 0;
}