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#include <fstream>
#include <cmath>
using namespace std;
int v[100002];
int main()
{
int n,i,j,a,b,maxim,q;
ifstream in("xormax.in");
ofstream out("xormax.out");
in>>n;
for(i=1;i<=n;i++)
{
in>>v[i];
}
maxim=0;
for(i=1;i<=n;i++)
{
q=0;
for(j=i;j<=n;j++)
{
q^=v[j];
if(q>maxim)
{
maxim=q;
a=i;
b=j;
}
else
{
if(q==maxim)
{
if(j<b||j-i<b-a)
{
a=i;
b=j;
}
}
}
}
}
out<<maxim<<" "<<a<<" "<<b;
return 0;
}