nth.cr

my_array = [
  :first, 
  :second, 
  :third, 
  :fourth, 
  :fifth
]


class Int32
  def minus_one 
    self - 1 
  end

  def st 
    minus_one 
  end

  def nd
    minus_one
  end

  def rd
    minus_one
  end

  def th
    minus_one
  end
end

puts my_array[1.st]
puts my_array[2.nd]
puts my_array[4.th]