Problem Statement

From the point (0,0) in a two-dimensional plane, let us move the distance of 1 toward the point (A, B). Find our coordinates after the move.
Here, after moving the distance of d from a point X to $a point Y (d \le$ length of the segment XY), we are at the point on the segment XY whose distance from X is d.
The Constraints guarantee that the distance between the points (0, 0) and (A, B) is at least 1.

Input

Input is given from Standard Input in the following format:
A B

Output

Let (x, y) be our coordinates after the move. Print x and y in this order, separated by a space.
Your output is considered correct when, for each printed value, the absolute or relative error from the judge's answer is at most 10^{−6}.

Constraints

• All values in input are integers.
• $0 \le A,B \le 1000$
• $(A,B) \neq (0,0)$

Sample Input 1

3 4

Sample Output 1

0.600000000000 0.800000000000

Printing 0.5999999999 0.8000000001, for example, would also be accepted.

Sample Input 2

1 0

Sample Output 2

1.000000000000 0.000000000000

We may arrive at (A, B).

Sample Input 3

246 402

Sample Output 3

0.521964870245 0.852966983083

见题面 Input 部分

见题面 Output 部分