#include<stdio.h>
int sk, b, s, v[50001], i,a, n, k, it, fl, smax;
int main()
{
	
	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]);
	it=1;
	sk=0;
	for (i=1;i<=k-1;i++)
		sk+=v[i];
	s=sk;
	smax=-25001;
	for (i=k;i<=n;i++){
		if (sk+v[i]>=s+v[i]){
			it=i-k+1;
			fl=i;
			s=sk+v[i];
		}
		else {
			s=s+v[i];
			fl=i;
		}
		sk-=v[i-k+1];
		sk+=v[i];
		if (s>smax){
			a=it;
			b=fl;
			smax=s;
		}
	}
	printf("%d %d %d\n",a,b,smax);
	fclose(stdin);
	fclose(stdout);
	return 0;
}