#include using namespace std; #define rep(i,n) for(int i=0;il; array,n>a; rep(i,n){ a[n-1-i]=bitset(); cin>>l[n-1-i]; rep(j,l[n-1-i]){ int x; cin>>x; x--; a[n-1-i][x]=1; } } array,2>dp; rep(i,2)dp[i].resize(1<>j&1){ cnt^=1; }else{ if(a[k][j]){ rep(t,2)dp[t^cnt][d+(1<