using System;

    public class Program

    {

        public static void Main()

        {

            int numero = 12345678;

            int check = CountHoles(numero);

            Console.WriteLine(check);   

        }

        public static int CountHoles(int num){

            int roles = 0;

            for (int i=0; i < num.ToString().Length; i++ ){

                string ver = "";                

                ver = num.ToString().Substring(i,1);                

                if (ver.Contains("0") || ver.Contains("4") || ver.Contains("6") || ver.Contains("9")){

                    roles++;

                }               

                if (ver.Contains("8")){

                    roles = roles+2;

                }

            }       

            return roles;       

        }

    }