using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        string result = string.Empty;

        bool x = true;

        bool y = false;

        int i = 0;

        int k = 0;

        while (i< 10)

        {

            if(x&&y){

                k=k-1;

                x= !x;

                continue;

            }

            else if (x||y)

            {

            k = k+2;

            y = !y;

            }

            else if (x)

            {

            k +=2;  

            }

            else

            {

            k+=5;

                break;

            }

            i++;

        }

        result = k.ToString();

        Console.WriteLine("\t{0}", result);

    }

}

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