Competitions

# XOR Contest

# Rectangle

Pete must select **4** points on the plane so that they formed a rectangle with sides parallel to coordinate axes. Peter had already chosen three points and I am sure he picked them up correctly. Please help Pete find the coordinates of the fourth point.

#### Input

Contains three lines. Each line contains two integers, separated by a space - the coordinates of the vertices of the rectangle. All coordinates are in the range from **1** to **1000**.

#### Output

Print two integers - the coordinates of the fourth vertex of the rectangle.

Input example #1

5 5 5 7 7 5

Output example #1

7 7

Input example #3

11 13 11 23 21 23

Output example #3

21 13

Input example #6

2 2 1 2 1 1

Output example #6

2 1