#define MAX_N 100000

#include <fstream>
using namespace std;

ifstream fin("xormax.in");
ofstream fout("xormax.out");

int n, A[MAX_N + 1], PD[MAX_N + 1];

int Xor(int st, int dr);

int main()
{
	fin >> n;
	for (int i = 1; i <= n; ++i)
	{
		fin >> A[i];
		PD[i] = A[i] ^ PD[i - 1];
	}
	
	int I = -1, J = -1, ma = -1;
	for (int i = 1; i <= n; ++i)
	{
		for (int j = i; j <= n; ++j)
		{
			int aux = Xor(i, j);
			
			if (ma < aux)
			{
				ma = aux;
				I  = i;
				J  = j;
			}
		}
	}
	
	fout << ma << ' ' << I << ' ' << J;
	
	fin.close();
	fout.close();
	return 0;
}

int Xor(int st, int dr)
{
	int r = 0;
	
	for (int i = st; i <= dr; ++i)
	{
		r ^= A[i];
	}
	
	return r;
}