#include<fstream>
#define dim 50009
using namespace std;
int a[dim],sum[dim],n,k,st,dr,in,s,max1;
ifstream f("secv2.in");
ofstream g("secv2.out");
int main()
{
    f>>n>>k;
    for(int i=1;i<=n;i++)
    {
        f>>a[i];
        sum[i]=a[i]+sum[i-1];
    }
    max1=a[1];
    max1=sum[k]=s;
    st=in=1;
    dr=k;
    for(int i=k+1;i<=n;i++)
    {
        if(sum[i]-sum[i-k]>=a[i]+s)
        {
            s=sum[i]-sum[i-k];
            st=i-k+1;
        }
        else
            s+=a[i];
        if(s>max1)
        {
            dr=i;
            max1=s;
            in=st;
        }
    }
    g<<in<<" "<<dr<<" "<<max1;
}