// infoarena

#include <fstream>

using namespace std;

int n, smax, i, imin, s, a, smin, b, e;
ifstream fin ("ssm.in");
ofstream fout ("ssm.out");

int main () {
  smax = -2e9; // 2000000000
  fin >> n;
  for (i = 1; i <= n; i++) {
    fin >> a;
    s += a;
    if (smax < s - smin)
      smax = s - smin, b = imin + 1, e = i; // begin, end
    if (smin > s)
      smin = s, imin = i;
  }
}

/*

----------b-------e------

----------b-------e
           i
----------
         i

-------------b
*/