#include <iostream>
#include<set>
#include<vector>
using namespace std;
int main() {
int t,e,c=0;
cin>>t;
e=t;
set<int>s;
vector<int>v;
while(t--)
{
int f,i;
cin>>f;
v.push_back(f);
int mf;
int arr[mf];
int a;
cin>>mf;
for(i=0;i<mf;i++)
{
cin>>a;
s.insert(a);
}
} for(int i=0;i<v.size();i++)
{
if(s.count(v[i]))
c++;
}cout<<s.size()-c<<endl;
// your code goes here
return 0;
}
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