#include <bits/stdc++.h>
#define L 100005
using namespace std;
ifstream fin("xormax.in");
ofstream fout("xormax.out");

int n;
int v[L];

int main(){
  fin >> n;
  for (int i = 1; i <= n; i++) {
    int x;
    fin >> x;
    v[i] = (v[i - 1] ^ x);
  }

  int ans = -1, le = -1, ri = -1;
  for (int j = 1; j <= n; j++)
    for (int i = j - 1; i >= 0; i--)
      if (ans < (v[i] ^ v[j])) {
        ans = (v[i] ^ v[j]);
        le = i + 1;
        ri = j;
      }
  fout << ans << " " << le << " " << ri << "\n";
  return 0;
}