#include <fstream>

using namespace std;

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

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

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

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