using System;

public class Program

{

    public static void Main()

    {

        int a = 2,b=5;

        do

        {

            a=a+2;

            b=b+1;

        } while (b < 5);

        do

        {

            a=a+2;

            b=b+1;

        } while (b < 6);

        Console.WriteLine(a);

    }

}