# your code goes here

hit=false

10.times do |a|
	10.times do |b|
		10.times do |c|
			if hit==false
				d=a.to_s
				d.concat(b.to_s)
				d.concat(c.to_s)
				puts d
				S=STDIN.gets.chomp
				if S=="unlocked"  
					hit=true
				end
			end
		end
	end
end