using System;

using System.Text;

public class Program

{

    private const string TagsPart = "_tags=";

    private const string SmartcodeTemplate = "id={0}_userType={1}_grade={2}_activationResult={3}";

    public static void Main()

    {

        Console.WriteLine("Enter quantity of smart-codes");

        var quantity = int.Parse(Console.ReadLine());

​

        Console.WriteLine("Enter user type (TEACHER or STUDENT)");

        var userType = Console.ReadLine();

​

        Console.WriteLine("Enter grade (from 1 to 11)");

        var grade = int.Parse(Console.ReadLine());

​

        Console.WriteLine("Enter activation result (0 - success, 1 - code was activated, 2 - code not found, 3 - internal server error)");

        var actResult = int.Parse(Console.ReadLine());

        Console.Clear();

        for (int i = 0; i < quantity; i++)

        {

            var str = string.Format(SmartcodeTemplate,

                Guid.NewGuid(),

                userType,

                grade,

                actResult);

            var base64 = Convert.ToBase64String(Encoding.Default.GetBytes(str));

            Console.WriteLine(base64);

        }       

    }

}