#include<stdio.h>

int main()
{
   int a[50000],n,k,i,j,pi,pf;
   long t[50000],max;
   FILE *fin,*fout;
   fin=fopen("secv2.in","r");
   fout=fopen("secv2.out","w");
   fscanf(fin,"%d%d",&n,&k);
   int imax=0;
   t[0]=0;
   for(i=1;i<=n;i++)
   {
      fscanf(fin,"%d",&a[i]);
      t[i]+=t[i-1]+a[i];
      for(j=1;j<=i-k;j++)
         if(max<t[i]-t[j]) {max=t[i]-t[j]; pi=j+1; pf=i;}
      if(i>=k) if(max<t[i] || !imax) {pi=1; max=t[i];pf=i; imax=1;}
   }
   fprintf(fout,"%d %d %d",pi,pf,max);
   fclose(fin);
   fclose(fout);
   return 0;
}