#include <fstream>
using namespace std;

int main()
{
    fstream f("secv2.in",ios::in),g("secv2.out",ios::out);
    int n,i,k,a[50005],V[50005]={},i1,i2,sum,v,s;
    f>>n>>k;
    for(i=1;i<=n;++i)
    {
        f>>a[i];
        V[i]=V[i-1]+a[i];
    }
    f.close();
    sum=v=V[k];
    i1=s=1;
    i2=k;
    for(i=k+1;i<=n;++i)
    {
        v+=a[i];
        if(v<V[i]-V[i-k])
        {
            v=V[i]-V[i-k];
            s=i-k+1;
        }
        if(v>sum)
        {
            sum=v;
            i1=s;
            i2=i;
        }
    }
    g<<i1<<" "<<i2<<" "<<sum;
    g.close();
    return 0;
}