[백준_JAVA] 3009 네 번째 점

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int x1, x2, x3, y1, y2, y3;
		int x4=0; int y4=0;
		x1 = scan.nextInt(); y1 = scan.nextInt();
		x2 = scan.nextInt(); y2 = scan.nextInt();
		x3 = scan.nextInt(); y3 = scan.nextInt();
		
		if(x1 == x2) x4 = x3;
		if(x1 == x3) x4 = x2;
		if(x2 == x3) x4 = x1;
		
		if(y1 == y2) y4 = y3;
		if(y1 == y3) y4 = y2;
		if(y2 == y3) y4 = y1;
		
		System.out.print(x4+" "+y4);
	}
}