# include <stdio.h>
int main(){
	int i,max,a,b,p,s,n,k,v[50001],sum[50001];
	freopen("secv2.in","r",stdin);
	freopen("secv2.out","w",stdout);
	scanf("%d%d",&n,&k);
	sum[0]=0;
	for (i=1;i<=n;++i){
		scanf("%d",&v[i]);
		sum[i]=sum[i-1]+v[i];
	}
	max=s=sum[k];
	p=a=1;b=k;
	for(i=k+1;i<=n;++i){
		if(s<sum[i-1]-sum[i-k]){
			p=i-k+1;
			s=sum[i]-sum[i-k];
		}
		else
			s+=v[i];
		if(s>max){
			max=s;
			a=p;
			b=i;
		}
	}
	printf("%d %d %d\n",a,b,max);
	return 0;
}