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 Ruby (judge verdict: Accepted)

# Gauss
module Gauss
  def self.calc(a)
    a.length.times do |k|
      pivot = a[k][k]
      i = k

      i.upto(a[k].length - 1) do |j|
        a[k][j] /= pivot
      end

      a.length.times do |j|
        if (j != k)
          d = a[j][k]
          l = k
          l.upto(a[k].length - 1) do |m|
            a[j][m] -= d * a[k][m]
          end
        end
      end
    end

    a
  end
end

while line = gets
  a, b, c, d, e, f = line.chomp.split.map(&:to_f)
  g = [[a, b, c], [d, e, f]]
  answer = Gauss.calc(g)
  puts sprintf('%.3f %.3f', answer[0][2] + 0.0, answer[1][2] + 0.0)
end