#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>
#include<map>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;

signed main(){
	cout<<fixed<<setprecision(10);
	
	const int MAX = 100;
	int N;
	int ans = 0;
	map<pair<int,int>, int> mp;
	vector<pair<int,int>> in;
	cin>>N;
	
	in.resize(N);
	
	for(int i = 0; i < N; i++){
		cin>>in[i].first>>in[i].second;
	}
	
	for(int i = 0; i <= MAX; i++){
		for(int j = 0; j <= MAX; j++){
			mp.clear();
			for(int k = 0; k < N; k++){
				int X, Y, GCD = 0;
				
				X = in[k].first - i;
				Y = in[k].second - j;

				if(X == 0) mp[{0,0}]++;
				else {
					GCD = __gcd(abs(X), abs(Y));

					X /= GCD;
					Y /= GCD;

					mp[{X, Y}]++;
				}
			}
			
			for(pair<pair<int,int>,int> p : mp){
				ans = max(ans, p.second);
			}
	
		}
	}
	
	cout<<ans<<endl;
	
	return 0;
}