import java.io.*; import java.util.*; import java.math.*; import java.text.*; public class Main { public static void main(String[] args)throws java.lang.Exception { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); PrintWriter out=new PrintWriter(System.out); int i,n,x1,y1,x_cnt,y_cnt; n=Integer.parseInt(in.readLine()); int[] x=new int[n]; int[] y=new int[n]; for(i=0;i