#include <fstream>

using namespace std;

int N,K,v[50005],s[50005];

inline void Read()
{
    int i;
    ifstream fin("secv2.in");
    fin>>N>>K;
    for(i=1;i<=N;++i)
    {
        fin>>v[i];
        s[i]=s[i-1]+v[i];
    }
    fin.close();
}

inline void Solve()
{
    int st,dr,maxim=-2000000000,minim=2000000000,a,i;
    for(i=K;i<=N;++i)
    {
        if(minim>s[i-K])
        {
            minim=s[i-K];
            a=i-K;
        }
        if(s[i]-minim>maxim)
        {
            maxim=s[i]-minim;
            st=a+1; dr=i;
        }
    }
    ofstream fout("secv2.out");
    fout<<st<<" "<<dr<<" "<<maxim<<"\n";
    fout.close();
}

int main()
{
    Read();
    Solve();
    return 0;
}