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

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

int main() {
    unsigned int n;
    std::cin >> n;
    Student st[n];
    int n_g{};
    for (size_t i{}; i<n; i++) {
        st[i].input();
        (st[i].calculateTotalScore()>st[0].calculateTotalScore()) ? n_g++ : false;     
    }
    std::cout << n_g;
    return 0;
}