#include <bits/stdc++.h>
using namespace std;
ifstream fin("ssm.in");
ofstream fout("ssm.out");

int main()
{
  cin.rdbuf(fin.rdbuf());
  cout.rdbuf(fout.rdbuf());

  tuple<int, int, int> min(0, 0, 0), maxx(0, 0, 0);
  int sum = 0;

  int n, x;
  cin >> n;

  for (int i = 1; i <= n; i++)
  {
    cin >> x;
    sum += x;
    if (sum < get<0>(min))
      min = make_tuple(sum, i, i);

    if (sum - get<0>(min) > get<0>(maxx))
      maxx = make_tuple(sum - get<0>(min), get<1>(min) + 1, i);
  }

  cout << get<0>(maxx) << " " << get<1>(maxx) << " " << get<2>(maxx);

  return 0;
}