#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;
}