#include "bits/stdc++.h"
#define int long long
#define FOR(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ALL(obj) begin(obj), end(obj)
#define MAX(x) *max_element(ALL(x))
#define MIN(x) *min_element(ALL(x))
#define LOWER_BOUND(A, key) distance(A.begin(), lower_bound(ALL(A), key))
#define UPPER_BOUND(A, key) distance(A.begin(), upper_bound(ALL(A), key))

using namespace std;
using ll      = long long;
const int MOD = (int)(1e9 + 7);
const int INF = (int)(1e13 + 7);

int ceil_(int a, int b) { return (a + (b - 1)) / b; }
int bpm(int x, unsigned int y) {
  if (x == 0) return 0;
  if (y == 0) return 1;
  int ans   = 1;
  int digit = (int)((log((double)y) / log((double)2) / 1 + 1));
  x %= MOD;
  for (unsigned int i = 0; i < digit; i++) {
    if (((y >> i) & 1u) == 1) ans = ans * x % MOD;
    x = x * x % MOD;
  }
  return ans;
}
template <class T>
void cumulative_sum(T container) {
  for (int i = 0; i < container.size() - 1; i++) container[i + 1] += container[i];
}

signed main() {
  int N;
  cin >> N;
  vector<pair<int, int>> xy;
  rep(i, N) {
    int x, y;
    cin >> x >> y;
    xy.emplace_back(x, y);
  }
  int ans = 2;
  int temp_ans;
  rep(i, N - 1) {
    FOR(j, i + 1, N) {
      temp_ans = 0;
      rep(k, N) {
        if ((xy[i].first - xy[j].first) != 0) {
          if ((xy[i].second - xy[j].second) * (xy[k].first - xy[i].first) % (xy[i].first - xy[j].first) == 0) {
            if (xy[k].second == (xy[i].second - xy[j].second) * (xy[k].first - xy[i].first) / (xy[i].first - xy[j].first) + xy[i].second) temp_ans++;
          }
        }
      }
      ans = max(ans, temp_ans);
    }
  }
  FOR(i, 0, 101) {
    temp_ans = 0;
    rep(j, N) {
      if (xy[j].first == i) temp_ans++;
    }
    ans = max(ans, temp_ans);
  }
  FOR(i, 0, 101) {
    temp_ans = 0;
    rep(j, N) {
      if (xy[j].second == i) temp_ans++;
    }
    ans = max(ans, temp_ans);
  }
  cout << ans << endl;
}