import java.util.*;

public class Main {
	
	static boolean square_check(int x[], int y[]) {
		int v[] = new int[6];
		int count = 0;
		for (int i = 0; i < 4; i++)
			for (int j = i + 1; j < 4; j++) {
				int dx = x[i] - x[j], dy = y[i] - y[j];
				v[count] = (dx * dx + dy * dy);
				count++;
			}
		Arrays.sort(v);
		int l = v[0];
		if (l == 0)
			return false;
		return v[0] == l && v[1] == l && v[2] == l && v[3] == l
				&& v[4] == l * 2 && v[5] == l * 2;
	}
	
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int x[]=new int[4];
		int y[]=new int[4];
		for(int i=0;i<3;i++){
			x[i]=sc.nextInt();
			y[i]=sc.nextInt();
		}
		for(int i=-300;i<=300;i++){
			for(int j=-300;j<=300;j++){
				x[3]=i;
				y[3]=j;
				if(square_check(x,y)){
					System.out.println(i+" "+j);
					return;
				}
			}
		}
		System.out.println(-1);
	}}