#include <bits/stdc++.h>
#define rep(i, a, n) for (int i = a; i < n; i++)
#define repr(i, a, n) for (int i = n - 1; i >= a; i--)
using namespace std;
using ll = long long;
using P = pair<int, int>;
template <typename T> void chmin(T &a, T b) { a = min(a, b); }
template <typename T> void chmax(T &a, T b) { a = max(a, b); }

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);

  int n;
  cin >> n;
  vector<pair<double, double>> v(n);
  rep(i, 0, n) {
    double x, y;
    cin >> x >> y;
    v[i] = make_pair(x, y);
  }

  int ans = 0;
  rep(i, 0, n) {
    map<double, int> mp;
    rep(j, 0, n) {
      if (i == j)
        continue;
      if ((v[j].first - v[i].first) == 0)
        mp[1e9]++;
      else
        mp[(v[j].second - v[i].second) / (v[j].first - v[i].first)]++;
    }
    for (auto m : mp) {
      chmax(ans, m.second);
    }
  }
  cout << ans + 1 << endl;
}