#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using VI = vector<ll>;
using VV = vector<VI>;
using VS = vector<string>;

// tourist set
template <typename A, typename B>
string to_string(pair<A, B> p);

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);

string to_string(const string& s) {
  return '"' + s + '"';
}

string to_string(const char* s) {
  return to_string((string) s);
}

string to_string(bool b) {
  return (b ? "true" : "false");
}

string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}

template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}

template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto &x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}

template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")";
}

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}

#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
// tourist set end

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define rep(i,b) FOR(i, 0, b)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl
#define p_yes() p("YES")
#define p_no() p("NO")
#define pb(s) push_back(s)
#define SZ(x) ((int)(x).size())

void no(){p_no(); exit(0);}
void yes(){p_yes(); exit(0);}

const ll mod = 1e9 + 7;
const ll inf = 1e10;

void vprint(vector<ll> A){
    ll L = A.size();
    FOR(i, 0, L){
        if(i) cout << ' ';
        cout << A[i];
    }
    cout << endl;
}

ll dp[1000][5000];


ll to_binary(VI V){
  ll ret = 0;
  for(ll v : V){
    v--;
    ret += (1<<v);
  }
  return ret;
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    ll N, M;
    cin >> N >> M;
    VI A(M);
    VI B(M);
    VI C;
    rep(i, M){
      cin >> A[i] >> B[i];
      VI V;
      rep(j, B[i]){
        ll c; cin >> c;
        V.push_back(c);
      }
      C.push_back(to_binary(V));
    }
    debug(C);

    rep(i, 1000){
      rep(j, 5000){
        if(j==0){
          dp[i][j] = 0;
        }else{
          dp[i][j] = inf;
        }
      }
    }

    dp[0][C[0]] = A[0];
    debug(dp[0][C[0]]);
    debug(C[0]);

    FOR(i, 0, M-1){ // i番目までのkey
      rep(j, 1<<N){ // 開いた状態
        chmin(dp[i+1][j], dp[i][j]);
        // 新たに i番目の 鍵を使う
        ll new_j = j | C[i+1]; // フラグ和
        ll new_cost = dp[i][j] + A[i+1];
        chmin(dp[i+1][new_j], new_cost);
        
      }
    }

    // rep(i, M){
    //   rep(j, 1<<N){
    //     cout << dp[i][j] << ' ';
    //   }
    //   cout << endl;
    // }



    debug(dp[0][13]);
    debug(dp[1][13]);

    ll mi = inf;
    rep(i, M){
      chmin(mi, dp[i][(1<<N)-1]);
    }
    if(mi==inf){
      p(-1);
    }else{
      p(mi);
    }



    
    return 0;
}

Measured memory_bytes: 39424