using System;
using System.Linq;
using System.Collections.Generic;

public class yukicoder
{
    public static void Main()
    {
        int cnt = 0;
        
        while(true)
        {
            Console.WriteLine(string.Format("{0:D3}", 0));
            if(Console.ReadLine() == "locked")
                cnt ++;
            else
                break;
        }
    }
}