# your code goes here
hit=false
S=""
10.times do |a|
	10.times do |b|
		10.times do |c|
			if hit==false
				d=a.to_s<<b.to_s<<c.to_s
				puts d
			end
			S=STDIN.gets
			if S=="unlocked\n"
				hit=true
				break
			end
		end
		if hit==true
			break
		end
	end
	if hit==true
		break
	end
end