#include <iostream>
#include <fstream>
using namespace std;
ifstream f("xormax.in");
ofstream g("xormax.out");
int s[100001], n;
int main()
{
    int i, j, x, sxmax, start, stop ;
    f >> n;
    for(i = 1; i <= n; i++)
    {
        f >> x;
        s[i] = s[i - 1] ^ x; //s[0]==0
    }
    sxmax=s[1];
    start=1;
    stop=1;
    for(i = 1; i <= n; i++)
    {
        for(int j = i-1; j >=0; j--)
            if((s[i]^s[j]) > sxmax)
            {
            sxmax = s[i]^s[j];
            start = j+1;
            stop = i;
            }
    }
    g << sxmax<<' '<<start<<' '<<stop;
    return 0;
}