using System;

public class Program

{

    public static void Main()

    {

     int i = 0; 

​

            for (i = 1; i <= 26; i++) 

​

            { 

​

                Console.Write ("Stufe " + i + "\n");   

            }

            int Schritt = 70; 

​

            int Weg_gelaufen = 0; 

​

            int Weg = 800; 

​

​

            while (Weg_gelaufen <= Weg) 

​

            { 

​

                Weg_gelaufen = Weg_gelaufen + Schritt; 

                Console.WriteLine(Weg_gelaufen);

            }

​