#include <fstream>
#include <algorithm>
using namespace std;
ifstream cin("balanta.in");
ofstream cout("balanta.out");
int v[1030],v2[1030],v3[1030];
int main()
{
    int n,m,k,a,nr,nr2,cnt = 0;
    cin>>n>>m;
    for(int x = 0;x < m;x++){
        cin>>k;
        for(int y = 0;y < k;y++){
            cin>>v[y];
        }
        for(int y = 0;y < k;y++){
            cin>>v2[y];
        }
        cin>>nr;
        if(nr == 0){
            for(int y = 0;y < k;y++){
                v3[v[y]] = 1;
            }
            for(int y = 0;y < k;y++){
                v3[v2[y]] = 1;
            }
        }else if(nr == 1){
            for(int y = 0;y < k;y++){
                v3[v2[y]] = 1;
            }
        }else{
            for(int y = 0;y < k;y++){
                v3[v[y]] = 1;
            }
        }
    }
    for(int x = 1;x <= n;x++){
        if(v3[x] == 0){
            nr2 = x;
            cnt++;
        }
    }
    if(cnt == 1){
        cout<<nr2;
    }else cout<<0;
    return 0;
}