#include <fstream>

using namespace std;

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

long long v[50001];

int main()
{
    int n, k, i, a, s = -1, st, dr = 1, poz = 0, MAX = 0;
    in >> n >> k;
    for (i = 1; i <= n; ++i)
    {
        in >> a;
        v[i] = v[i - 1] + a;
    }
    for (i = k; i <= n; ++i)
    {
        if (s + (v[i] - v[i - 1]) < v[i] - v[i - k])
        {
            s = v[i] - v[i - k];
            poz = i - k + 1;
        }
        else
            s += v[i] - v[i - 1];
        if (s > MAX)
        {
            MAX = s;
            st = poz;
            dr = i;
        }
    }
    out << st << " " << dr << " " << MAX;
    return 0;
}