#define _GLIBCXX_DEBUG
#include<bits/stdc++.h>
using namespace std;
#define rep(i,x) for(ll i = 0; i < (ll)(x); i++)
#define rrep(i,x) for(ll i = (ll)(x)-1;0 <= i; i--)
#define reps(i,x) for(ll i = 1; i < (ll)(x)+1; i++)
#define rreps(i,x) for(ll i = (ll)(x); 1 <= i; i--)
#define debug(x) cerr << #x << ": " << (x) << "\n";
#define all(x) (x).begin(), (x).end()
typedef long long ll;
typedef long double ld;
typedef pair<int,int> P;
typedef pair<ll,ll> Pll;
typedef vector<ll> vl;
typedef vector<vector<ll>> vvl;
typedef vector<vector<vector<ll>>> vvvl;
const ll INF = numeric_limits<ll>::max()/4;
const int n_max = 1e5+10;
#define int ll

template<class T>
bool chmax(T &a, T b){if(a < b){a = b; return true;} return false;}
template<class T>
bool chmin(T &a, T b){if(a > b){a = b; return true;} return false;}

signed main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    ll n; cin >> n;
    vector<Pll> v(n);
    rep(i,n)cin >> v[i].first >> v[i].second;
    auto c = [&](ll i, ll j, ll k){
        ll ret = (v[j].first - v[i].first) * (v[k].second - v[i].second);
        ret -= (v[j].second - v[i].second) * (v[k].first - v[i].first);
        return ret == 0;
    };

    ll temp = 0;
    ll ans = 0;
    rep(i,n)rep(j,i){
        rep(k,n){
            if(k == i || k == j)continue;
            temp += c(i, j, k);
        }
        chmax(ans, temp + 2);
        temp = 0;
    }

    cout << ans << endl;

}