#include <fstream>

using namespace std;
ifstream fin("secv2.in");
ofstream fout("secv2.out");
int n,k,a[50005],dp[50005],sol=-1000000000,solst,soldr,dr,st,o,i;
int main()
{
   fin>>n>>k;
   for(i=1;i<=n;i++)
   {
       fin>>a[i];
       if(i<=k)o+=a[i];
   }
    dp[k]=sol=o;st=solst=1;dr=soldr=k;
    for(i=k+1;i<=n;i++)
    {
        o=o+a[i]-a[i-k];
        if(dp[i-1]+a[i]>=o){dp[i]=dp[i-1]+a[i];dr=i;}
        else
        {
            dp[i]=o;
            dr=i;
            st=i-k;
        }
        if(dp[i]>sol){sol=dp[i];solst=st;soldr=dr;}
    }
    fout<<solst+1<<" "<<soldr<<" "<<sol<<"\n";
}