#include <bits/stdc++.h>
using namespace std;
int a[101][4];
int main() {
  int n;
  cin >> n;
  int min = 0, ind = 0;
  for (int i = 0; i < n; i++) cin >> a[i][0] >> a[i][1] >> a[i][2] >> a[i][3];
  min = 100000;
  ind = 0;
  for (int i = 0; i < n; i++) {
    bool ust = false;
    for (int j = 0; j < n; j++)
      if (i != j)
        if (a[i][0] < a[j][0] && a[i][1] < a[j][1] && a[i][2] < a[j][2]) {
          ust = true;
          break;
        }
    if (!ust)
      if (a[i][3] < min) {
        min = a[i][3];
        ind = i;
      }
  }
  cout << ind + 1 << endl;
  return 0;
}
