#include<iostream>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<string>
#include<algorithm>
using namespace std;
const int maxn=150;
const int delta=10005;
int n;
int x[maxn];
int y[maxn];
int maxx=-1;
int main()
{
	freopen("asm_fuel.in","r",stdin);
	freopen("asm_fuel.out","w",stdout);
	scanf("%d",&n);
	for(int i=1;i<=n;i++)
	{
		scanf("%d %d",&x[i],&y[i]);
		x[i]+=delta;
		y[i]+=delta;
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=i+1;j<=n;j++)
		{
			int sp=0;
			double xl=0.0;
			if(x[j]!=x[i])
				xl=double((y[j]-y[i])/(x[j]-x[i]));
			else
				sp=1;
			double b=y[i]-xl*x[i];
			int ans=0;
			for(int k=j+1;k<=n;k++)
			{
				if(sp)
				{
					if(x[k]==x[j])
					{
						ans++;
						continue;
					}
				}
				if(y[k]-xl*x[k]-b<0.00001)
				{
					ans++;
				}
			}
			ans+=2;
			maxx=max(ans,maxx);
		}
	}
	cout<<maxx;
}