#include <fstream>

using namespace std;
ifstream f ("secv2.in");
ofstream g ("secv2.out");
int a[50002],i,n,k,in,sf,aux,sums;
void secventa ()
{
    in=1;
    sf=k;
    sums=a[k];
    for (int j=k+1;j<=n;j++)
    {
        if (a[j-k]<a[aux])
            aux=j-k;
        if (a[j]-a[aux]>sums)
        {
            sums=a[j]-a[aux];
            in=aux+1;
            sf=j;
        }
    }
    g<<in<<" "<<sf<<" "<<sums<<'\n';
}
int main()
{
    f>>n>>k;
    for (i=1;i<=n;i++)
    {
        f>>a[i];
        a[i]+=a[i-1];
    }
    secventa();
    return 0;
}