using System;

​

public class Program {

  public static void Main() 

  {

     int br=0, s=0, n;

    do

    { 

     Console.Write("n=");

     n=int.Parse(Console.ReadLine());

     s=s+n;

     br++;

     } while(n!=0);

     br--;

     Console.WriteLine("s= "+s);

     Console.Write("br= "+br);

    }

  }

​

​