#include <iostream>
#include <string>

using namespace std;

#define NM 100005

int N, A[NM], XOR[NM];

int main()
{
	int best = -1, bestst, bestdr;
	
	freopen ("xormax.in", "r", stdin);
	freopen ("xormax.out", "w", stdout);
	
	scanf ("%d", &N);
	
	for (int i = 1; i <= N; ++i) 
	{	
		scanf ("%d", &A[i]);
		XOR[i] = XOR[i-1] ^ A[i];
	}	
	
	for (int dr = 1; dr <= N; ++dr)
		for (int st = dr; st >= 1; --st)
		{
			int sum_xor = XOR[dr]^XOR[st-1];
			
			if (sum_xor > best)
			{
				best = sum_xor;
				bestst = st;
				bestdr = dr;
			}	
		}	
		
	printf ("%d %d %d", best, bestst, bestdr);	
	
	return 0;
}