Steam Player ID to Battleye Guid Ruby

ruby.rb

require 'digest'
steamid=[]
guid = []
string = 'BE'

steamid <<  "76561198147354524"
steamid.flatten!

steamid.each { |x|
  x = x.to_i
  byte_array = string.bytes.to_a
  x=x.divmod(256)
  byte_array << x[1]
  for i in 0..6
    x=x[0].divmod(256)
    byte_array << x[1]
  end
  guid.concat [(Digest::MD5.hexdigest byte_array.pack "C*")]
}
puts guid