## https://yukicoder.me/problems/no/3528

MOD = 998244353

def main():
    N, K = map(int, input().split())
    array = []
    for _ in range(K):
        values = tuple(map(int , input().split()))
        S = values[1]
        B = [v - 1 for v in values[2:]]
        array.append((S, B))
    
    inv_2 = pow(2, MOD - 2, MOD)
    answer_array = [0] * N
    for k in range(30):
        w_array = [0] * N
        for S, B in array:
            s = 1 if S & (1 << k) > 0 else 0
            for b in B:
                w_array[b] += s
        
        for i in range(N):
            if w_array[i] > 0:
                answer_array[i] += (inv_2 * (1 << k)) % MOD
                answer_array[i] %= MOD
    
    answer = 0
    for i in range(N):
        answer += answer_array[i]
        answer %= MOD
    print(answer)



if __name__ == "__main__":
    main()