#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
using i64=long long;
using pll=pair<i64,i64>;
int n;
void work(){
    vector<pll>p(n+1);
    for (int i=1;i<=n;i++){
        cin>>p[i].fi>>p[i].se;
    }
    int ma=0;
    for (int i=1;i<=100;i++){
        int x,y,nu=2;
        x=rand()%n+1;
        y=rand()%n+1;
        while (y==x) y=rand()%n+1;
        pll l1={p[x].fi-p[y].fi,p[x].se-p[y].se},l2;
        for (int j=1;j<=n;j++){
            if (j==x||j==y) continue;
            l2={p[j].fi-p[y].fi,p[j].se-p[y].se};
            if (l1.fi*l2.se-l1.se*l2.fi==0)
                nu++;
        }
        ma=max(nu,ma);
    }
    if (ma<=n*2/3)
        cout<<n%3<<'\n';
    else cout<<ma-(n-ma)*2<<'\n';
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    #ifdef LC
    freopen("t.in","r",stdin);
    freopen("t.out","w",stdout);
    #endif
    while (cin>>n)
        work();
}