#include <fstream>
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int i,j,n,k,x,y,M;
int v[50001];
int main()
{

    f>>n>>k;
    for (i=1;i<=n;++i)
        f>>v[i],v[i]+=v[i-1];

   int st=1,dr=k;

   while (dr<=n)
        {
            if (v[dr]-v[st-1]<0)
                ++st,dr-st<k-1?++dr:1;
            else ++dr;

            if (v[dr]-v[st-1]>M)
                M=v[dr]-v[st-1],x=st,y=dr;
        }

    g<<x<<" "<<y<<" "<<M;
    return 0;
}