题目描述
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-----
Each of the three points already chosen will be given on a separate line. All coordinates will be integers between $1$ and $1000$.
-----Output-----
Output the coordinates of the fourth vertex of the rectangle.
-----Examples-----
Sample Input:
5 5
5 7
7 5
Sample Output:
7 7
输入格式
见题面
输出格式
见题面
样例输入
5 5
5 7
7 5
样例输出
7 7