## COCI '07 Contest 1 #1 Cetvrta

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

Problem types

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 and .

#### 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