#include <iostream>
using namespace std;

// Define the Student class
class Student {
private:
    int scores[5]; // Array to hold scores (fixed size for 5 subjects)

public:
    // Function to read scores from input
    void input() {
        for (int i = 0; i < 5; i++) {
            cin >> scores[i];
        }
    }

    // Function to calculate the total score
    int calculateTotalScore() {
        int totalScore = 0;
        for (int i = 0; i < 5; i++) {
            totalScore += scores[i];
        }
        return totalScore;
    }
};

int main() {
    int n; // Number of students
    cin >> n;

    Student* students = new Student[n]; // Dynamically allocate array of students

    // Input scores for each student
    for (int i = 0; i < n; i++) {
        students[i].input();
    }

    // Calculate Kristen's total score (first student)
    int kristenScore = students[0].calculateTotalScore();

    // Count how many students scored higher than Kristen
    int count = 0;
    for (int i = 1; i < n; i++) {
        if (students[i].calculateTotalScore() > kristenScore) {
            count++;
        }
    }

    // Output the result
    cout << count << endl;

    // Clean up dynamic memory
    delete[] students;
		
		
		

    return 0;
}

class Student
{

private: 
    vector<int> scores; 

public: 
    void input()
    {
        int a, b, c, d, e; 
        cin >> a >> b >> c >> d >> e; 
        scores = { a, b, c, d ,e }; 
    };
    int calculateTotalScore()
    {
        return accumulate(scores.begin(), scores.end(), 0);
    }; 

};

class Student
{
    std::vector<int> scores{};

public:
    void input()
    {
        // If std::cin buffer has '\n', then clear the buffer
        if (std::cin.peek() == '\n') {
            std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
        }

        std::string str;

        //read input and store it in a string "str", note that this includes the newline character '\n';
        std::getline(std::cin, str); //a way to remove the newline from the string

        std::stringstream iss( str );

        //convert the numbers on the string to an integers and store it as elements of vector str_int
        int score;
        while (iss >> score)
        {
            scores.emplace_back(score);
        }
    }

    int calculateTotalScore()
    {
        int total{0};
        for (const auto &num: scores)
        {
            total += num;
        }
        return total;
    }
};