#!/usr/bin/ruby

class Board
	def initialize()
		@board = Array.new(8) {|i| Array.new(8, '_')}
	end

	def to_s()
		str = ''
		@board.each {|row| 
			row.each {|cell| 
				str += cell
			} 
			str += "\n"
		}
		return str
	end


end

b = Board.new()
puts b.to_s