#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;
int maxim=-1,start=-1,stop=-1;
vector<unsigned long long>	v;
int main(){
	ifstream f("xormax.in");
	ofstream g("xormax.out");
	unsigned long long n,el;
	f >> n;
	f >> el;
	v.push_back(el);
	maxim  = v[0];
	start= stop =0;
	for(unsigned long long i=1;i<n;i++){
		f >> el;
		for(unsigned long long j=0;j<v.size();j++){
			v[j] = v[j] ^ el;
			if(maxim < v[j]){
				maxim = v[j];
				start  = j;
				stop = i;
			}
		}
		v.push_back(el);
		if(v[i] > maxim){
			maxim = v[i];
			start = i;
			stop = i;
		}
	}
	g << maxim << ' ' << start + 1 << ' ' << stop + 1;
}