#define MAX_N 100000

#include <fstream>
using namespace std;

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

int n, DP[MAX_N + 1];

int XorRange(int left, int right);

int main()
{
	fin >> n;
	for (int i = 1; i <= n; ++i)
	{
		fin >> DP[i];
		DP[i] ^= DP[i - 1];
	}
	
	int MA = -1, I = -1, J = -1;
	for (int j = 1; j <= n; ++j)
	{
		for (int i = j; i >= 1; --i)
		{
			int xorVal = XorRange(i, j);
			if (xorVal > MA)
			{
				MA = xorVal;
				I  = i;
				J  = j;
			}
		}
	}
	
	fout << MA << ' ' << I << ' ' << J;
	
	fin.close();
	fout.close();
	return 0;
}

int XorRange(int left, int right)
{
	return DP[right] ^ DP[left - 1];
}