#include <cstdio>

#define MAXN 100000

int N, V[MAXN];

void actsol(int max, int start, int stop,
            int& oldmax, int& oldstart, int& oldstop)
{
  if(max > oldmax ||
     (max == oldmax && stop < oldstop) ||
     (max == oldmax && stop == oldstop && start > oldstart))
  {
    oldmax = max;
    oldstart = start;
    oldstop = stop;
  }
}

void read()
{
  scanf("%d", &N);
  for(int i = 0; i < N; i++)
    scanf("%d", V + i);
}

void brut()
{
  int a = -1, b, c;
  for(int i = 0; i < N; i++)
  {
    for(int j = i; j < N; j++)
    {
      int xor_val = 0;
      for(int k = i; k <= j; k++)
      {
        xor_val ^= V[k];
      }
      actsol(xor_val, i, j, a, b, c);
    }
  }
  printf("%d %d %d\n", a, b + 1, c + 1);
}

int main()
{
  freopen("xormax.in", "r", stdin);
  freopen("xormax.out", "w", stdout);
  read();
  brut();
  return 0;
}