package main

import . "fmt"
import . "sort"

func Hypot(a, b int) int {
	return a*a+b*b
}

func main() {
	var x1,y1,x2,y2,x3,y3 int
	Scan(&x1,&y1,&x2,&y2,&x3,&y3)
	d12 := Hypot(x1-x2,y1-y2)
	d23 := Hypot(x2-x3,y2-y3)
	d31 := Hypot(x3-x1,y3-y1)
	for y4 := -200; y4 <= 200; y4++ {
		for x4 := -200; x4 <= 200; x4++ {
			d14 := Hypot(x1-x4,y1-y4)
			d24 := Hypot(x2-x4,y2-y4)
			d34 := Hypot(x3-x4,y3-y4)
			s := []int{d12,d23,d31,d14,d24,d34}
			Ints(s)
			if s[0]==s[3]&&s[3]<s[4]&&s[4]==s[5] {
				Println(x4,y4)
				return
			}
		}
	}
	Println(-1)
}