#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=v[i];
        for(j=i+1;j<=n;j++)
        {
            q^=v[j];
            if(q>maxim)
            {
                maxim=q;
                a=i;
                b=j;
            }
        }
    }
    out<<maxim<<" "<<a<<" "<<b;
    return 0;
}