using System;

public class Program

{

    public static void Main()

    {

        int n = 2;

        int sum=0;

        while(n<=100)

        { 

            Console.WriteLine("n= {0}",n);

            sum=sum+n;

            n+=3;

        }

        Console.WriteLine("sum of degits is {0}",sum);

    }

}