#include<bits/stdc++.h>
using namespace std;
#define ALL(x) begin(x),end(x)
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define mod 1000000007
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}

struct IOSetup{
    IOSetup(){
        cin.tie(0);
        ios::sync_with_stdio(0);
        cout<<fixed<<setprecision(12);
    }
} iosetup;
 
template<typename T>
ostream &operator<<(ostream &os,const vector<T>&v){
    for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==(int)v.size()?"":" ");
    return os;
}
template<typename T>
istream &operator>>(istream &is,vector<T>&v){
    for(T &x:v)is>>x;
    return is;
}

signed main(){
    int n,m;cin>>n>>m;

    using P=pair<ll,ll>;
    vector<P> basis;
    rep(i,m){
        int a;cin>>a;
        ll base=0;
        rep(j,a){
            int b;cin>>b;b--;
            base+=(1ll<<b);
        }
        ll val;cin>>val;
        for(auto x:basis)if(chmin(base,base^x.first)) val=(val^x.second);
        if(base==0){
            if(val!=0){
                cout<<-1<<endl;
                return 0;
            }
        }else{
            basis.emplace_back(base,val);
        }
    }

    rep(i,n){
        ll base=(1ll<<i);
        ll res=0;
        for(auto x:basis)if(chmin(base,base^x.first)) res^=x.second;
        if(base==0) cout<<res<<endl;
        else{
            basis.emplace_back(1ll<<i,0);
            cout<<0<<endl;
        }
    }

    return 0;
}