require 'yaml'
file_yaml = YAML.safe_load(File.read(ARGV[0]))
result = ''
file_yaml[0].each_key do |titles, _values|
  empty_str = ''
  empty_str += titles.to_s + "\t"
  result += empty_str
end
result += "\n"
file_yaml.each do |keys|
  keys.each_value do |_key, value|
    result += value.to_s + "\t"
  end
  result += "\n"
end

print result if ARGV[1].nil?
File.write(ARGV[1], result, mode: 'w')