#include <fstream>
#include <algorithm>
#define NMAX 50005
#define inf 2000000000

using namespace std;

ifstream f("secv2.in");
ofstream g("secv2.out");

int i, n, best = -inf, s = -inf, v[NMAX], sp[NMAX], st, dr, k, stc;

int main()
{
    f >> n >> k;

    for (i = 1; i <= n; ++ i)
    {
        f >> v[i];
        sp[i] = sp[i - 1] + v[i];
    }

    s = best = sp[k];
    st = 1;
    dr = k;

    for (i = k + 1; i <= n; ++ i)
    {
        if (sp[i] - sp[i - k] > s + v[i])
        {
            stc = i - k + 1;
            s = sp[i] - sp[i - k];
        }
        else
            s += v[i];

        if (s > best)
        {
            best = s;
            st = stc;
            dr = i;
        }
    }

    g << st << " " << dr << " " << best << '\n';
    return 0;
}