#include <cstdio>
#include <string>
#include <cstring>

#define MAXN 100010
using namespace std;


struct Trie {
	Trie *fiu[2];
	int end;
	Trie () {
		fiu[0] = fiu[1] = 0;
		end = 0;
	}
};

Trie *T = new Trie;
int N, i, X[MAXN], Sol, SolX, SolY;
void Insert (Trie *R, int Val, int Bit)
{
	if (Bit == -1) {

		R -> end = i;
		return ;
	}

	int x = (((1 << Bit) & Val) >> Bit);
	
	if (R -> fiu[x] == 0)
		R -> fiu[x] = new Trie;
	
	Bit -= 1;

	Insert (R -> fiu[x], Val, Bit);
}
void Query (int Val, int Bit)
{	
	Trie *R = T;
	
	while (Bit != -1) {
		int x = ((Val & (1 << Bit)) >> Bit);
		if (R -> fiu[x ^ 1])
			R = R -> fiu[x ^ 1];
		else R = R -> fiu[x];

		Bit -= 1;
	}

	if (Sol < (Val ^ X[R -> end])) {
	
		Sol = Val ^ X[R -> end];
		SolX = R -> end + 1;
		SolY = i;
	}
	
	
}
int main ()
{

	freopen ("xormax.in", "r", stdin);
	freopen ("xormax.out", "w", stdout);
	
	scanf ("%d\n", &N);
	int A;
	
	Insert (T, 0, 24);

	for (i = 1; i <= N; i++) {

		scanf ("%d", &A);
		X[i] = X[i - 1] ^ A;

		Query (X[i], 24);
		Insert (T, X[i], 24);
	}

	printf ("%d %d %d\n", Sol, SolX, SolY);

	return 0;
}