/********************
    Created by Sburly
********************/
#include <fstream>

using namespace std;

int main()
{
    ifstream f("xormax.in");
    ofstream g("xormax.out");

    long int n;
    f >> n;
    long int v[n];
    long int xr[n];


    f >> v[0];
    xr[0] = v[0];
    for(long int i = 1; i < n; i++)
    {
        f >> v[i];
        xr[i] = xr[i-1] ^ v[i];
    }

    long int bestXor;
    long int b, e;
    for(long int i = 0; i < n; i++)
    {
        long int cxr;
        for(long int j = 0; j < i; j++)
        {
            cxr = xr[i] ^ xr[j];
            if(cxr > bestXor)
            {
                bestXor = cxr;
                b = j;
                e = i;
            }
        }
    }
    g << bestXor << ' ' << b+2 << ' ' << e+1;


    return 0;
}