using System;

public class Program

{

    public static void Main()

    {

        //to print the series 1 4 7 10 13 using assignement short hand notations 

        int x = 1;

        Console.WriteLine(x);

        x += 3;

        Console.WriteLine(x);

        x += 3;

        Console.WriteLine(x);

        x += 3;

        Console.WriteLine(x);

        x += 3;

        Console.WriteLine(x);

    }

}