Diagonals

Input

In four lines, the $x$ and $y$ coordinates of the consecutive vertices of the parallelogram are given, corresponding respectively to points $A$, $B$, $C$, and $D$. All numbers do not exceed $100$ in absolute value.

Output

Print the $x$ and $y$ coordinates of the intersection point $O$ in the first line. In the second line, print the lengths of diagonals $AC$ and $BD$. Output all values with an accuracy of three decimal places.

Examples