Mirko and Slavko have built a grand new pool in front of their weekend getaway.

The pool is an isosceles right triangle, with legs of length .

Everything was perfect, girls were coming, the DJ was coming, and the parties were wild.

But, a problem arose when they started serving food at the parties. Mirko is vegetarian, while Slavko thinks a party without sausages is no party at all. Therefore they had to divide the pool into two parts.

The pool is placed into a coordinate system (as in the figure above) and divided into two parts of equal area by a line segment with both endpoints on the edges of the pool.

Write a program that, given one endpoint of the dividing line segment, calculates the coordinates of the other endpoint.

#### Input Specification

The first line contains two integers, the coordinates of one endpoint of the dividing line segment. That point will be on one of the edges of the pool.

#### Output Specification

Output the coordinates of the other endpoint, rounded to two decimal digits.

#### Sample Input 1

`0 0`

#### Sample Output 1

`125.00 125.00`

#### Sample Input 2

`230 20`

#### Sample Output 2

`0.00 114.13`

#### Sample Input 3

`0 40`

#### Sample Output 3

`148.81 101.19`

## Comments