#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int n, cnt, mmax = 2;
    double x, y, b, k, b1, k1;
    cin >> n;
    vector<pair<double, double> > v(n);
    for (int i = 0; i < n; ++i) {
        cin >> x >> y;
        v[i] = {x, y};
    }
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            if (i == j) continue;
            cnt = 2;
            b = (v[i].second*v[j].first/v[i].first - v[j].second)/(v[j].first/v[i].first - 1);
            k = (v[i].second - b)/v[i].first;
            for (int z = 0; z < n; ++z) {
                if (i == z || j == z) continue;
                b1 = (v[i].second*v[z].first/v[i].first - v[z].second)/(v[z].first/v[i].first - 1);
                k1 = (v[i].second - b)/v[i].first;
                if (b1 - b >= -0.0000001 && b1 - b <= 0.0000001 && k1 - k >= -0.0000001 && k1 - k <= 0.0000001) cnt++;
            }
            mmax = max(mmax, cnt);
        }
    }
    cout << mmax;
    return 0;
}