a,b=0,998244353;N,K=map(int,input().split());c=[list(map(lambda x:~-int(x),input().split()))for _ in[0]*K]
for i in range(30):
 d=set()
 for j in range(K):
  if(1+c[j][1]>>i&1):
   d|=set(c[j][2:])
 a=(a+pow(2,i-1,b)*len(d))%b
print(a)