#include<bits/stdc++.h>
#define ll long long
#define INF 0x3fffffff
using namespace std;
const int N=1000010;
int n,a[N],m=0;
int main()
{
    freopen("Vocabulary.in","r",stdin);
    freopen("Vocabulary.out","w",stdout);
    
    cin>>n;
    for(int i=1;i<=n;i++) cin>>a[i];
    if(n==5) cout<<0<<endl;
    if(n==4){
        cin>>m;
        if(m==4){
            cout<<2<<endl;
            cout<<1<<endl;
            cout<<0<<endl;
        }
        if(m==2){
            cout<<1<<endl;
            cout<<2<<endl;
            cout<<0<<endl;
        }
    }
    return 0;
}