#include <fstream>

using namespace std;

ifstream f("secv2.in");
ofstream g("secv2.out");

int main()
{
    short numere[50001],corect=false;
    long long suma[50001],smax=-2000000000;
    int n,k;
    int beg,fin;
    int inc=1;
    f>>n>>k>>numere[1];
    suma[1]=numere[1];
    for(int i=2;i<=n;i++)
        f>>numere[i],suma[i]=suma[i-1]+numere[i];
    for(int i=k+1;i<=n;i++)
    {
        if(suma[inc]>suma[i-k])inc=i-k;
        if(suma[i]-suma[inc]>smax)smax=suma[i]-suma[inc],beg=inc,fin=i;
    }
    g<<beg+1<<" "<<fin<<" "<<smax<<"\n";
    f.close();
    g.close();
    return 0;
}