#include <bits/stdc++.h>
#define nmax 50005

using namespace std;


ofstream fout("secv2.out");

int n, k, v[nmax], dp[nmax];

void Citire()
{
    int i;
    ifstream fin("secv2.in");
    fin >> n >> k;
    for (i = 1; i <= n; i++)
        fin >> v[i];
    fin.close();
}

void SecvMax()
{
    int i, suma, smax, st, dr, poz;
    suma = 0;
    for (i = 1; i <= k; i++)
        suma += v[i];
    dp[k] = suma;
    smax = suma;
    st = 1;
    dr = k;
    for (i = k + 1; i <= n; i++)
    {
        if (dp[i - 1] > suma)
          dp[i] = dp[i - 1] + v[i];
        else
        {
            dp[i] = suma + v[i];
            poz = i - k;
        }
        if (dp[i] > smax)
        {
            st = poz;
            dr = i;
            smax = dp[i];
        }
        suma -= v[i - k];
        suma += v[i];
    }
    fout << st << " " << dr << " " << smax << '\n';
    fout.close();
}

int main()
{
    Citire();
    SecvMax();
    return 0;
}