COCI '07 Contest 1 #1 Cetvrta

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Points: 5
Time limit: 1.0s
Memory limit: 32M

Problem types
Allowed languages
Ada, Assembly, Awk, Brain****, C, C#, C++, COBOL, CommonLisp, D, Dart, F#, Forth, Fortran, Go, Groovy, Haskell, Intercal, Java, JS, Kotlin, Lisp, Lua, Nim, ObjC, OCaml, Octave, Pascal, Perl, PHP, Pike, Prolog, Python, Racket, Ruby, Rust, Scala, Scheme, Sed, Swift, TCL, Text, Turing, VB, Zig

Mirko needs to choose four points in the plane so that they form a rectangle with sides parallel to the axes. He has already chosen three points and is confident that he hasn't made a mistake, but is having trouble locating the last point. Help him.

Input Specification

Each of the three points already chosen will be given on a separate line. All coordinates will be integers between 1 and 1\,000.

Output Specification

Output the coordinates of the fourth vertex of the rectangle.

Sample Input 1

5 5
5 7
7 5

Sample Output 1

7 7

Sample Input 2

30 20
10 10
10 20

Sample Output 2

30 10

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