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#include <iostream>

using namespace std;

int main(){

int k, n, a, prac = 0;
cin >> k;
cin >> n;
prac+=n;
for(int i = 2; i <= k; i++){
    cin >> n;
    for(int j = 1; j <= n; j++){
        cin >> a;
        if(a==0) prac++;
    }
}
cout << prac;


return 0;
}