#include <stdio.h>
int a[50005];
int n,k,rez;
int s[50005];
int main ()
{
	freopen ("secv2.in","r",stdin);
	freopen ("secv2.out","w",stdout);
	int i,val,in,sf,st;
	scanf ("%d%d",&n,&k);
	for (i=1; i<=n; ++i)
	{
	   scanf ("%d",&a[i]);
	   s[i]=s[i-1]+a[i];
    }
    rez=s[k];
    in=1;
    sf=k;
    val=s[k];
    st=1;
	for (i=k+1; i<=n; ++i)
	{
	   val+=a[i];
       if (val<s[i]-s[i-k])
	   {
	       val=s[i]-s[i-k];
           st=i-k+1;     
	   }
	   if (val>rez)
	   {
	       rez=val;
	       in=st;
           sf=i;
	   }
	}
	printf ("%d %d %d\n",in,sf,rez);
   /*	for (i=1; i<=maxk; ++i)
	printf ("%d ",b[i]);  */
	return 0;
}