#include <fstream>
using namespace std;

ifstream cin("xormax.in");
ofstream cout("xormax.out");

int n,s[100005],trie[4194304],rasp,st,dr;
char c[21];

int main()
{
    int i,j,nod,aux;rasp=-1;
	cin>>n;
	for(i=2;i<4194304;i++) trie[i]=-1;
	for(i=1;i<22;i++) trie[(1<<i)]=0;
	for(i=1;i<=n;++i){
		cin>>s[i];
		s[i]^=s[i-1];
		for(j=0;j<21;j++) c[j]=(bool)(s[i]&(1<<(20-j)));
		nod=1;
		for(j=0;j<21;j++){
            aux=0;
            if(!c[j]) aux=1;
			if(trie[(nod<<1)+aux]>0) nod=(nod<<1)+aux;
			else nod=(nod<<1)+c[j];
		}
		j=trie[nod];
		if((s[i]^s[j])>rasp){
			rasp=s[i]^s[j];
			st=j+1;
			dr=i;
		}
		nod=1;
		for(j=0;j<21;j++){
            nod=(nod<<1)+c[j];
            trie[nod]=i;
		}
	}
	cout<<rasp<<" "<<st<<" "<<dr<<"\n";
    return 0;
}