#0002FA

Cetvrta

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.


InputEach of the three points already chosen will be given on a separate line. All coordinates will be integers between 1 and 1000.

OutputOutput the coordinates of the fourth vertex of the rectangle.

Input
5 5
5 7
7 5

Output
7 7

Input
30 20
10 10
10 20

Output
30 10

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