#include <bits/stdc++.h>

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2") 
#define pb push_back
#define F first
#define S second 
#define ld long double
#define all(a) a.begin(),a.end()
#define pii pair <int,int>
#define sz(v) (int)v.size()
#define rep(i , a , b) for(int i=a;i <= (b);i++)
#define per(i , a , b) for(int i=a;i >= (b);i--)
#define deb(x) cout <<#x << " : " << x << "\n" ;
using namespace std ;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxn = 2e6 + 10, sq = 1e5 , lg = 19,  inf = 1e8+10 , mod = 998244353;
int a[maxn] ;

signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    int n;cin >> n ;
    rep(i , 0 , (1<<n)-1){
        cin >> a[i] ;
    }
    rep(ms , 0 , (1<<n)-1){
        rep(j , 0 , n-1){
            rep(k , j+1 , n-1){
                if((ms>>j&1)==1 || (ms>>k&1)==1)continue ;
                int z= ms^(1<<j) , t= ms^(1<<k);
                if(a[z]+a[t] < a[z&t]+a[z|t]){
                    cout <<z << " " << t << "\n";
                    exit(0) ;
                }
            }
        }
    }
    cout << "-1\n" ;
    return 0;
}
/*
10 7 4
8 4
9 4
7 2
10 2
4 5
3 5
6 7
*/