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 C# (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace mondai0004
{
	class Program
	{
		static void Main(string[] args)
		{
			while( true ) {
				var	str	= Console.ReadLine();
				if( str == null ) {
					break;
				}
				var	n	= Array.ConvertAll( str.Split( ' ' ), a => double.Parse( a ) );
				
				// 加減法
				var	n_0	= n[ 0 ];
				var	n_3	= n[ 3 ];
				for( int i = 0; i < 3; i++ ) {
					n[ i ]	*= n_3;
				}
				for( int i = 3; i < 6; i++ ) {
					n[ i ]	*= n_0;
				}
				double	y	= (n[ 2 ] - n[ 5 ]) / (n[ 1 ] - n[ 4 ]);
				double	x	= (n[ 2 ] - (n[ 1 ] * y)) / n[ 0 ];
				Console.WriteLine( "{0:f3} {1:f3}", x, y );
			}
		}
	}
}