import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        try (Scanner scan = new Scanner(System.in)) {
            int x1 = Integer.parseInt(scan.next());
            int y1 = Integer.parseInt(scan.next());
            int x2 = Integer.parseInt(scan.next());
            int y2 = Integer.parseInt(scan.next());
            int x3 = Integer.parseInt(scan.next());
            int y3 = Integer.parseInt(scan.next());
            
            int list[] = new int[6];
            for(int y4=-200; y4<=200; y4++) {
                for(int x4=-200; x4<=200; x4++) {
                    list[0] = dis(x1,y1,x2,y2);
                    list[1] = dis(x2,y2,x3,y3);
                    list[2] = dis(x3,y3,x4,y4);
                    list[3] = dis(x4,y4,x1,y1);
                    list[4] = dis(x1,y1,x3,y3);
                    list[5] = dis(x2,y2,x4,y4);
                    Arrays.sort(list);
                    int v = list[0];
                    if(list[0] == v && list[1] == v && list[2] == v && list[3] == v && list[4] == v*2 &&list[5] == v*2) {
                        System.out.println(x4 + " " + y4);
                        return;
                    }
                    
                }
            }
            System.out.println(-1);
        }
    }
    
    static int dis(int x1, int y1, int x2, int y2) {
        return ((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));
    }
}