Score : $100$ points
There is a rectangle in the $xy$-plane. Each edge of this rectangle is parallel to the $x$- or $y$-axis, and its area is not zero.
Given the coordinates of three of the four vertices of this rectangle, $(x_1, y_1)$, $(x_2, y_2)$, and $(x_3, y_3)$, find the coordinates of the other vertex.
Input is given from Standard Input in the following format:
$x_1$ $y_1$ $x_2$ $y_2$ $x_3$ $y_3$
Print the sought coordinates $(x, y)$ separated by a space in the following format:
$x$ $y$
-1 -1 -1 2 3 2
3 -1
The other vertex of the rectangle with vertices $(-1, -1), (-1, 2), (3, 2)$ is $(3, -1)$.
-60 -40 -60 -80 -20 -80
-20 -40