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.Linq;

class SimultaneousEquation 
{
    static void Main()
    {
        var q =
            from se in 
                from p in GetProblems()
                select p.Split( ' ' ).Select( _ => double.Parse( _ ) )
            let a = se.Skip( 0 ).First()
            let b = se.Skip( 1 ).First()
            let c = se.Skip( 2 ).First()
            let d = se.Skip( 3 ).First()
            let e = se.Skip( 4 ).First()
            let f = se.Skip( 5 ).First()
            let y = ( c - f * a / d ) / ( b - e * a / d )
            let x = ( c - b * y ) / a
            select 
                Math.Round( x, 4 ).ToString( "0.000" ) + " " + 
                Math.Round( y, 4 ).ToString( "0.000" );
        foreach ( var solution in q )
            Console.WriteLine( solution );
    }

    static System.Collections.Generic.IEnumerable<string> GetProblems()
    {
        string buffer = "";
        while ( ( buffer = Console.ReadLine() ) != null )
            yield return buffer;
    }
}