#include<bits/stdc++.h>
#define nlim 100005
#define pb push_back
using namespace std;
ifstream f("date.in");
ofstream g("date.out");
int main()
{
    int n,i,maxim=-1,start=0,stop=0;
     vector<int>a(nlim);
    f>>n;
    for(int i=1;i<=n;i++)
    {
        f>>a[i];
    }
    for(int i=1;i<=n;i++)
    {
        if(maxim<(a[i]^a[i+1])){
            maxim=(a[i]^a[i+1]);
            start=i;
            stop=i+1;
        }
    }
    g<<maxim<<" "<<start<<" "<<stop;
}