#include<bits/stdc++.h>
using namespace std;
#define ll long long
#include<atcoder/modint>
using namespace atcoder;
using mint = modint998244353;
//fastio
struct FastIO {
   FastIO() {
      std::ios::sync_with_stdio(false);
      std::cin.tie(nullptr);
   }
} fastio;
int main() {
   ll N, K; cin >> N >> K;
   vector<ll> A(N, 0);
   for (int i = 0; i < K; i ++) {
      int L; cin >> L;
      ll S; cin >> S;
      for (int j = 0; j < L; j ++ ) {
         int B; cin >> B; B -- ;
         A[B] |= S;
      }
   }
   mint ans = 0;
   for (int i = 0; i < N; i ++) ans += A[i];
   cout << (ans / (mint(2))).val() << endl;
}