#include <bits/stdc++.h>

using namespace std;

int main(){
	int n;
	cin>>n;

	vector<pair<int,int>> pts(n);

	for(int i=0; i<n; i++) cin>>pts[i].first>>pts[i].second;

	map<int,int> x;
	map<int,int> y;

	for(auto [ix, iy] : pts){
		x[ix]++;
		y[iy]++;
	}
	int res = 1e9;

	for(auto [ix, iy] : pts){
		res = min(res, n+1-x[ix]-y[iy]);
	}
	cout<< res<<endl;
}