#include <fstream>

using namespace std;

ifstream fin("secv2.in");
ofstream fout("secv2.out");

long long n,k,i,a,d,s1,minim,maxim,st,dr,s[50002];

int main()
{
    fin >> n >> k;
    for(i=1;i<=k;i++)
    {
        fin >> a;
        s[i]=s[i-1]+a;
    }
    if(k==n)
    {
        fout << "1 " << n << " " << s[k] << "\n";
        return 0;
    }
    for(i=1;i+k<=n;i++)
    {
        fin >> a;
        d=i+k;
        s[d]=s[d-1]+a;
        if(s[i]<minim)
        {
            minim=s[i];
            s1=i;
        }
        if(s[d]-minim>maxim)
        {
            maxim=s[d]-minim;
            st=s1+1;
            dr=i+k;
        }
    }
    fout << st << " " << dr << " " << maxim << "\n";

    return 0;
}