#include<cstdio>
int s[50001];
int main()
{
	int po1,po2,ss,st,sum,smax,n,k,i,j,p1,p2;
	freopen("secv2.in","r",stdin);
	freopen("secv2.out","w",stdout);
	scanf("%d%d",&n,&k);
	s[0]=0;
	p1=1; p2=k; sum=0;
	for(i=1;i<=n;++i)
	{
	    scanf("%d",&s[i]);
		if(i<=k)
			sum+=s[i];
	}
	ss=sum; smax=sum; p1=1; p2=k; po1=1; po2=k;
	for(i=k+1;i<=n;++i)
	{
		sum+=s[i];
		sum-=s[i-k];
 		if(sum>ss+s[i])
		{
			po1=i-k+1;
			po2=i;
			ss=sum;
		}
		else 
		{
			ss+=s[i];
			po2=i;
		}
		if(smax<ss)
		{
			smax=ss;
			p1=po1;
			p2=po2;
		}
	}
	printf("%d %d %d\n",p1,p2,smax);
	return 0;
}

//Note to self: Cannon highly effective against secv2.