def f(s,n)
	m=0
	ans=0
	10.times{|i|
		s[n]=i.to_s
		puts s
		STDOUT.flush
		t=gets.split
		n1=t[0].to_i
		if n1==10
			return true 
		elsif m<n1
			m=n1
			ans=i
		end
	}
	s[n]=ans.to_s[0]
	f(s,n+1)
end
f("0"*10,0)