#include<cstdio>
int v[50001],v2[50001];
int main ()
{freopen ("secv2.in","r",stdin);
freopen ("secv2.out","w",stdout);
int n,k,i,min,max,in,sf,poz;
max=-1250000001;
min=1250000001;
scanf("%d%d",&n,&k);
for(i=1;i<=n;i++)
    {scanf("%d",&v[i]);
    v2[i]=v2[i-1]+v[i];
    }
for(i=k;i<=n;i++)
    {if(v2[i-k]<min)
        {min=v2[i-k];
        poz=i-k+1;
        }
    if(v2[i]-min>max)
        {max=v2[i]-min;
        in=poz;
        sf=i;
        }
    }
printf("%d %d %d",in,sf,max);
return 0;
}