Problem:
Simultaneous Equation

Write a program which solve a simultaneous equation:

ax + by = c

dx + ey = f

The program should print x and y for given a, b, c, d, e and f (-1,000 ≤ a, b, c, d, e, f ≤ 1,000). You can suppose that given equation has a unique solution.

Input

The input consists of several data sets, 1 line for each data set. In a data set, there will be a, b, c, d, e, f separated by a single space. The input terminates with EOF.

Output

For each data set, print x and y separated by a single space. Print the solution to three places of decimals. Round off the solution to three decimal places.

Sample Input 1

1 2 3 4 5 6
2 -1 -2 -1 -1 -5

Output for the Sample Input 1

-1.000 2.000
1.000 4.000

Sample Input 2

2 -1 -3 1 -1 -3
2 -1 -3 -9 9 27

Output for the Sample Input 2

0.000 3.000
0.000 3.000

Solution in JAVA (judge verdict: WA: Presentation Error)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		//0-a, 1-b, 2-c, 3-d, 4-e, 5-f
		double[] ar = new double[6] ;
		double x,y;
		String str=br.readLine();
		StringTokenizer st;

		int i=0;
		while(str!=null){
			st = new StringTokenizer(str);
			while(st.hasMoreTokens()){
				ar[i] = Double.parseDouble(st.nextToken());
				i++;
			}
			x = (ar[2]*ar[4] - ar[1]*ar[5])/(ar[0]*ar[4] - ar[1]*ar[3]);
			y = (ar[2] - (ar[0]*x))/ar[1];
			
			if(x==-0.0){
				x=0;
			}
			if(y==-0.0){
				y=0;
			}
			System.out.printf("%.3f  %.3f\n",x,y);
			str = br.readLine();
			i=0;
		}

	}

}