#include<fstream>
using namespace std;
int v[100000];
int n;

int main()
{
    ifstream in("xormax.in");
    in>>n;
    for(int i = 0; i < n; i++)
        in>>v[i];
    in.close();
    int now = 0;
    int start = 0, end = 0;
    int max = 0;

    for(int c = 0; c < n - 1; c++)
    {
        now = v[c];
        for(int i = c + 1; i < n; i++)
        {
            now ^= v[i];
            if(now > max)
            {
                max = now;
                start = c;
                end = i;
            }
        }
    }
    ofstream out("xormax.out");
    out<<max<<" "<<start + 1 <<" "<<end + 1;
    out.close();
}