#include <bits/stdc++.h>

using namespace std;

ifstream fin("xormax.in");
ofstream fout("xormax.out");
const int BMax = 21;
struct Nod {
    Nod* fii[2];
    int poz;

    Nod(int _poz = 0) {
        poz = _poz;
        fii[0] = fii[1] = nullptr;
    }

    ~Nod() {
        delete fii[0];
        delete fii[1];
    }
} *radTrie;
int n, i, sumX[100002], rasp, st, dr;

static inline void Add(int val, int poz) {
    Nod* nod = radTrie;

    for(int i = BMax; i >= 0; i--) {
        bool bitCur = (val >> i & 1);

        if(nod->fii[bitCur] == nullptr) {
            nod->fii[bitCur] = new Nod();
        }

        nod = nod->fii[bitCur];
    }
    nod->poz = poz;
}

static inline int Search(int val) {
    Nod* nod = radTrie;

    for(int i = BMax; i >= 0; i--) {
        bool bitCur = (val >> i & 1);

        if(nod->fii[!bitCur] != nullptr) nod = nod->fii[!bitCur];
        else                             nod = nod->fii[ bitCur];
    
    }
    return nod->poz;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    radTrie = new Nod();

    fin >> n;
    Add(0, 0);
    for(i = 1; i <= n; i++) {
        fin >> sumX[i];
        sumX[i] ^= sumX[i - 1];

        int caut = Search(sumX[i]);
        if(rasp < (sumX[i] ^ sumX[caut])) {
            rasp = sumX[i] ^ sumX[caut];
            st = caut + 1;
            dr = i;
        }
        Add(sumX[i], i);
    }
    fout << rasp << " " << st << " " << dr;

    delete radTrie;

    return 0;
}