using System;

public class Program

{

    public static void Main()

    {

        int b1,b2;

        Console.Write("");

        b1 = int.Parse(Console.ReadLine());

        Console.Write("");

        b2 = int.Parse(Console.ReadLine());

        while(b1<=b2){

            Console.WriteLine("No :"+b1);

        b1++;

        }

    }

}