const unsigned NUM_SCORES = 5;
#include <numeric>

class Student {
public:
    void input( vector<int>& scores )
        { scores_ = scores; }
    int calculateTotalScore()
        { return accumulate( scores_.begin(), scores_.end(), 0 ); }
private:
    vector<int> scores_;
};

int main() {
    
    vector<int> scores( NUM_SCORES );
    int q, better=0;
    cin >> q;
    int total[q];
    
    Student s;    
    for( int i=0; i<q; i++ ) {
        for( int j=0; j<NUM_SCORES; j++ ) cin >> scores[j];
        s.input( scores );
        total[i] = s.calculateTotalScore();
    }
    
    for( int i=1; i<q; i++ ) if( total[i]>total[0] ) better++;
    cout << better << endl;
}