using System;
using System.IO;

namespace No304_2 {
    public class Program {
        public static void Main(string[] args) {
            var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
            for(var i = 0; i < 1000; i++) sw.WriteLine($"{i:D3}");
            sw.Flush();
        }
    }
}