# Problem D

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 hasnâ€™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.

Sample Input 1 | Sample Output 1 |
---|---|

5 5 5 7 7 5 |
7 7 |

Sample Input 2 | Sample Output 2 |
---|---|

30 20 10 10 10 20 |
30 10 |