#include <bits/stdc++.h>

using namespace std;
long long int v[50005];
int main()
{
    ifstream fin("secv2.in");
    ofstream fout("secv2.out");

   long long int n,k,sum=0,maxsum=-9999999999,sumaultimelorkminus1elemente=0,pozi,pozf,inc=1;
   fin>>n>>k;
   for(long long int i=1; i<=n; i++)
   {
       fin>>v[i];
   }
   for(long long int i=1; i<=n; i++)
   {
       sum+=v[i];
       sumaultimelorkminus1elemente+=v[i];
       if(i-k+1>0)
       sumaultimelorkminus1elemente+=v[i-k+1];
       if(sum>maxsum)
       {
        maxsum=sum;
        pozf=i;
        pozi=inc;
       }
       if(sum<sumaultimelorkminus1elemente)
       {
        sum=sumaultimelorkminus1elemente;
        inc=i-k+1;
       }
   }
   fout<<pozi<<" "<<pozf<<" "<<maxsum;

    return 0;
}