#include <fstream>

using namespace std;

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

int n, x, k, Min, Max = -2e9, poz, st, dr;
int sp[50005];

int main()  {
  fin >> n >> k;
  for (int i = 1; i <= n; ++i)  {
    fin >> x;
    sp[i] = sp[i - 1] + x;
    if (i < k)
      continue;
    if (i >= k && Min > sp[i - k])
      poz = i - k, Min = sp[i - k];
    if (Max < sp[i] - Min)  {
      Max = sp[i] - Min;
      st = poz + 1, dr = i;
    }
  }
  fout << st << ' ' << dr << ' ' << Max;
  return 0;
}