#include<fstream>

using namespace std;

ifstream f("secv.in");
ofstream g("secv.out");

int n,k,v[50005],p1,p2,s[50005],c,i,j,smax=-2000000,spoz,q;


int main()
{
	f>>n>>k;
	
	for(i=1;i<=n;i++)
	{
		f>>v[i];
        s[i]=s[i-1]+v[i];
		
	}
	for(i=k;i<=n;i++)
	{
		q=1;
		
		     while(i-q>=k-1)
			 {
				 s[i]=s[i]-v[q-1];
			
			if(s[i]>smax)

			{
				smax=s[i];
				p1=q;
				p2=i;
			}	
			q++;
			 			
			
		   }
		
		
		
	}
        g<<p1<<" "<<p2<<" ";	

			g<<smax;
	f.close();
	g.close();
	return 0;
}