#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

class Grades{
public:


    void input(int score1, int score2, int score3, int score4, int score5){
        this->score1 = score1;
        this->score2 = score2;
        this->score3 = score3;
        this->score4 = score4;
        this->score5 = score5;
        
        setSum(score1,score2, score3, score4,score5);
    }

    void setSum(int score1, int score2, int score3, int score4, int score5){
        
        this->sum = this->score1 + this->score2 + this->score3 + this->score4 + this->score5;
    }
    int get_calculateSum(){
        return this->sum;
    }

    private:
    int score1, score2,score3,score4, score5, sum;

};
int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int s1,s2,s3,s4,s5, n;
    int count = 0;
    cin >> n;
    cin >> s1 >> s2 >> s3 >> s4 >> s5;

    Grades Kristen;

    Kristen.input(s1,s2,s3,s4,s5);
    int Ksum = Kristen.get_calculateSum();
    //cout << Ksum << endl;
    //should be 135

    for(int i = 0; i< n-1; i++){
        Grades others;
        cin >> s1 >> s2 >> s3 >> s4 >> s5;
        others.input(s1,s2,s3,s4,s5);
        int Osum = others.get_calculateSum();
        //first one should be 140
        //second should be 120
        //cout << Osum << endl;
        if( Osum> Ksum){
            count ++;
        }
    }
    cout << count << endl;

    return 0;
}

/*
inputs: 
3
30 40 45 10 10
40 40 40 10 10
50 20 30 10 10
*/

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

class Student {
    private:
    int score1, score2, score3, score4, score5;
    
    public:
    void input(int score1, int score2, int score3, int score4, int score5) {
        this->score1 = score1;
        this->score2 = score2;
        this->score3 = score3;
        this->score4 = score4;
        this->score5 = score5;
    }
    
    int calculateTotalScore() {
        return this->score1+this->score2+this->score3+this->score4+this->score5;
    }
};

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
    int n;
    cin >> n;
    int s1, s2, s3, s4, s5;
    cin >> s1 >> s2 >> s3 >> s4 >> s5;
    Student Kristen;
    Kristen.input(s1, s2, s3, s4, s5);
    int KristenScore = Kristen.calculateTotalScore();
    int cnt = 0;
    n--;
    while (n-- > 0) {
        Student others;
        cin >> s1 >> s2 >> s3 >> s4 >> s5;
        others.input(s1, s2, s3, s4, s5);
        if(others.calculateTotalScore() > KristenScore) cnt++;
    }  
    cout << cnt;
    return 0;
}

class student{
    public:
    int arr[5];
    
    int TotalScore(student a){
        int total=0;
        for(int i=0;i<5;i++)total+=arr[i];
        
        return total;
    }
};
int main() {
    int n;
    cin>>n;
    student Kristen;
    for(int i=0;i<5;i++){
        int temp;
        cin>>temp;
        Kristen.arr[i]=temp;
    }
    int KristenMarks=Kristen.TotalScore(Kristen);
    n--;
    int cnt=0;
    for(int i=1; i<=n;i++){
        student s;
        for(int i=0;i<5;i++){
            int temp;
            cin>>temp;
            s.arr[i]=temp;
        }
        int curr_marks=s.TotalScore(s);
        if(curr_marks>KristenMarks)cnt++;
    }
    cout<<cnt;
    return 0;
}

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <cassert>
using namespace std;

class Student{
    private:
        int grades[5];
    public:
        void input(){
            for (int i = 0; i < 5; i++){
                cin >> grades[i];
            }
        }
        int calculateTotalScore(){
            int sum = 0;
            for (int i = 0; i < 5; i++){
                sum += grades[i];
            }
            return sum;
        }
};

int main() {
    int n; // number of students
    cin >> n;
    Student *s = new Student[n]; // an array of n students
    
    for(int i = 0; i < n; i++){
        s[i].input();
    }

    // calculate kristen's score
    int kristen_score = s[0].calculateTotalScore();

    // determine how many students scored higher than kristen
    int count = 0; 
    for(int i = 1; i < n; i++){
        int total = s[i].calculateTotalScore();
        if(total > kristen_score){
            count++;
        }
    }

    // print result
    cout << count;
    
    return 0;
}