#include<cstdio>

using namespace std;

int n,k,x,sc=0,smax=0,p=1,p1=1,p2=1,sum[50002],v[50002];
int main()
{
	int i;
	freopen("secv2.in","r",stdin);
	freopen("secv2.out","w",stdout);
	scanf("%d %d",&n,&k);
	for (i=1; i<=n; i++)
	{
		scanf("%d",&v[i]);
		sum[i]=sum[i-1]+v[i];
	}
	sc = smax = sum[k];
	p1 = p = 1;
	p2 = k;
	for (i=k+1; i<=n; i++)
	{
		sc+=v[i];
		if (sum[i]-sum[i-k]>sc)
		{
			p=i-k+1;
			sc=sum[i]-sum[i-k];
		}
		if (sc>smax)
		{
			p1=p;
			p2=i;
			smax=sc;
		}
		/*if (sc<0)
		{
			sc=0;
			p=i+1;
		}*/
	}
	printf("%d %d %d",p1,p2,smax);
	return 0;
}