#include <fstream>

using namespace std;

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

long bestsum=-int(2e9), sum=0, start, final, s, n, aux, k, nr=0;

int main()
{
    f>>n>>k;
    for (int i=1; i<=n; i++)
    {
        f>>s;
        if (sum<0 || nr<k) sum=s, aux=i, nr=1;
          else sum+=s, ++nr;
        if (bestsum<sum)
        {
            bestsum=sum; start=aux; final=i;
        }
    }

    g<<start<<" "<<final<<' '<<bestsum<<'\n';
    f.close(); g.close();
    return 0;
}