#include<stdio.h>

int n,k,sc,a,smax,imax,fmax,ii=1,sum=1<<16,i;

int main()
{
	freopen("secv2.in","r",stdin);
	freopen("secv2.out","w",stdout);
	scanf("%d %d",&n,&k);
	sc=0;
	sum[0]=0;
	smax=-(1<<30);
	for(i=1;i<=n;i++)
	{
		scanf("%d",&a);
		sum[i]=sum[i-1]+a;
		if(i>=k && sum[i]-sum[i-k]>sc+a)
		{
			ii=i-k+1;
			sc=sum[i]-sum[i-k];
		}
		else 
			sc+=a;
		if (i>=k && sc>=smax)
		{
			smax=sc;
			imax=ii;
			fmax=i;
		}
	}
	printf("%d %d %d",imax,fmax,smax);
	return 0;
}