s = ''
tmp = 0
10.times{
    10.times{|i|
        puts "%010d" % (i.to_s + s)
        STDOUT.flush
        x,jugde = gets.chomp.split
        x = x.to_i
        if tmp < x
            tmp = x
            s = i.to_s + s
            break
        end
        if judge == 'unlocked'
            exit
        end
        }
    }