#include<stdio.h>
#define v 100000

long long n,a[v],w[v],start,stop,max;

void citire()
{
freopen("xormax.in","r",stdin);     
scanf("%d", &n);
for (int i=0; i<n; i++)
    scanf("%d", &a[i]);
fclose(stdin);
}     

void xormax()
{
w[0]=a[0];
start=0;
max=w[0];
stop=0;
for (int i=1; i<n; i++)
    for (int j=0; j<=i; j++)
        {
	w[j]^=a[i];
        if (w[j]>max)     
           {
           max=w[j];
           start=j+1;
           stop=i+1;
           }    
        }
}     

void printare()
{
freopen("xormax.out","w",stdout);
printf("%lld %lld %lld",max,start,stop);
fclose(stdout);     
}     

int main()
{
citire();
xormax();
printare();
return 0;    
}