> The output of the Bingo.generate_card method must meet the following specifications in addition to the number rules mentioned above.
 --Generate a different card each time.
 --Separate each column with a pipe (|).
 --Numbers and "BINGO" characters are output right-justified.
 --The space is output in the middle (where it becomes FREE).



# Answer example
 It turned out to be something like this.

```ruby
class Bingo
  def self.generate_card
    title = "BINGO".split("").map{|bingo| sprintf("%2s",bingo)}.join(" | ")

    numbers = [*1..75].each_slice(15).to_a.map{|b| b.sample(5)}
    numbers[2][2] = "  "
    body = []
    for i in 0..4
      body << numbers.map{|number| sprintf("%2s",number[i])}.join(' | ')
    end

    [title,body].join("\n")
  end
end

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