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;

namespace AOJ
{
    class SimultaneousEquation
    {
        public static void Main()
        {
            while (true)
            {
                string input = Console.ReadLine();
                if (string.IsNullOrEmpty(input)) { break; }
                var tmp = input.Split(' ');
                int a = int.Parse(tmp[0]);
                int b = int.Parse(tmp[1]);
                int c = int.Parse(tmp[2]);
                int d = int.Parse(tmp[3]);
                int e = int.Parse(tmp[4]);
                int f = int.Parse(tmp[5]);
                double x = ((b * f) - (c * e)) / ((b * d) - (a * e));
                double y = ((c * d) - (a * f)) / ((b * d) - (a * e));

                // 小数点以下4桁目を四捨五入
                x = Math.Round(x * 1000, MidpointRounding.AwayFromZero) / 1000;
                y = Math.Round(y * 1000, MidpointRounding.AwayFromZero) / 1000;
                Console.WriteLine(x.ToString("F3") + " " + y.ToString("F3"));
            }
        }
    }
}