#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
#define mp make_pair
#define CHECK(x) if(!(x)) return false;
#define CHECKRET(x, y) if(!(x)) return (y);
#define SKIP(x) if((x)) continue;
typedef pair<int, int> pii;

#ifdef INFOARENA
#define ProblemName "xormax"
#else
#define ProblemName "fis"
#endif

#define InFile ProblemName ".in"
#define OuFile ProblemName ".out"

const int MAXBUF = 30000000;
char parseBuf[MAXBUF];
char *head;
bool isDigit[255];

void parseInit() {
  int a = fread(parseBuf, 1, MAXBUF, stdin);
  parseBuf[a] = 0;
  head = parseBuf;
  memset(isDigit, 0, sizeof isDigit);
  for (int i = '0'; i <= '9'; ++i)
    isDigit[i] = true;
}

int nextInt() {
  int ans = 0;
  for (; !isDigit[*head]; ++head);
  for (; isDigit[*head]; ++head)
    ans = ans * 10 + (*head) - '0';
  return ans;
}

const int MAXN = 100010;
const int MAXBITS = 21;
int N;

struct solution {
  int x, start, stop;
  solution() { }
  solution(int x, int start, int stop) : x(x), start(start), stop(stop) {}
  bool operator<(const solution other) const {
    if (x != other.x) return x < other.x;
    if (stop != other.stop) return stop > other.stop;
    return stop - start > other.stop - other.start;
  }
  bool operator==(const solution other) const {
    CHECK(x == other.x);
    CHECK(stop == other.stop);
    CHECK(start == other.start);
    return true;
  }
};

struct trie {
  trie *nxt[2];
  int stp;
  void insert(int x, int bit, int stop);
  solution querymax(int with, int bit, int fin);
} phys[MAXN * MAXBITS / 3];
int nxtNode = 0;

void trie::insert(int x, int bit, int stop) {
  if (bit < 0) {
    stp = stop;
    return;
  }
  int tar = (x & (1 << bit)) ? 1 : 0;
  if (nxt[tar] == NULL) nxt[tar] = &phys[nxtNode++];
  nxt[tar]->insert(x, bit - 1, stop);
}
solution trie::querymax(int with, int bit, int fin) {
  if (bit < 0) return solution(0, stp + 1, fin);
  int tar = (nxt[0] == NULL) ? 1 :
    ((nxt[1] == NULL) ? 0 : ((with & (1 << bit)) ? 0 : 1));
  solution aux = nxt[tar]->querymax(with, bit - 1, fin);
  aux.x += (tar << bit);
  return aux;
}

int main() {
  assert(freopen(InFile, "r", stdin));
  assert(freopen(OuFile, "w", stdout));
  parseInit();
  trie *T = &phys[nxtNode++];
  N = nextInt();
  solution best(-1, -1, -1);
  T->insert(0, MAXBITS - 1, -1);
  int pref = 0;
  for (int i = 0; i < N; ++i) {
    int x = nextInt();
    pref ^= x;
    solution cand = T->querymax(pref, MAXBITS - 1, i);
    T->insert(pref, MAXBITS - 1, i);
    cand.x ^= pref;
    best = max(best, cand);
  }
  printf("%d %d %d\n", best.x, best.start + 1, best.stop + 1);

  return 0;
}