#include <bits/stdc++.h>
using namespace std::literals::string_literals;
using i64 = std::int_fast64_t;
using std::cout;
using std::cerr;
using std::endl;
using std::cin;

template<typename T>
std::vector<T> make_v(size_t a){return std::vector<T>(a);}

template<typename T,typename... Ts>
auto make_v(size_t a,Ts... ts){
  return std::vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));
}

int main() {
	int n; scanf("%d", &n); std::vector<int> x(n), y(n);
	for(int i = 0; i < n; i++) scanf("%d%d", &x[i], &y[i]);

	int ans = 0;
	for(int i = 0; i < 101; i++) {
		int cnt = 0;
		for(int j = 0; j < n; j++) cnt += (x[j] == i);

		ans = std::max(ans, cnt);
	}

	for(int i = 0; i < n; i++) {
		std::vector<std::map<int, int>> cnt(101);
		for(int j = 0; j < n; j++) {
			int dx = x[j] - x[i], dy = y[j] - y[i];
			if(dx == 0) continue;
			if(dx < 0) { dx *= -1; dy *= -1; };
			int g = std::gcd(dx, dy);
			dx /= g;
			dy /= g;

			ans = std::max(ans, ++cnt[dx][dy] + 1);
		}
	}
	
	printf("%d\n", ans);
	return 0;
}