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: Wrong Answer)

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

class Main {
	static List<Integer> list = new ArrayList<Integer>();

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		while (scan.hasNext()) {
			list.clear();
			for (int i = 0; i < 6; i++) {
				list.add(scan.nextInt());
			}
			double x = ((list.get(2) * list.get(4) - list.get(1) * list.get(5))
					/ (list.get(0) * list.get(4) - list.get(1) * list.get(3)));
			double y = ((list.get(0) * list.get(5) - list.get(2) * list.get(3))
					/ (list.get(0) * list.get(4) - list.get(1) * list.get(3)));
			System.out.printf("%.3f %.3f", x, y);
			if (scan.hasNext()) {
				System.out.println();
			}
		}
	}
}