#include <bits/stdc++.h>
#include <iostream>
using namespace std;

// https://host.pawz.hu/8840nfIq.png

int main() {
    int n, out, temp, temp2, max;
    max = 0;
    cin >> n;

    for (int i = 0; i < n; i++) {
        temp2 = 0;
        for (int j = 0; j < 7; j++) {
            cin >> temp;
            temp2 += temp;   
        }
        if (temp2 > max) {
        max = temp2;
        out = i+1;
        }
    }
    cout <<out;
}