using System;

public class Program

{

    public static void Main()

    {

    }

    public static void A(int num)

    {

        if (num==1)

        {

            Console.WriteLine("n");

        }

        else

        {

            Console.WriteLine("n");

            A(num-1);

        }

​

    }

    public static int B(int num)

    {

        if (num<10)

        {

            return 1;

        }

        else

        {

            int sum=0;

            sum=B(num/10)+1;

            return sum;

         }

    }

    public static int C(int a ,int b)

    {

        if(b>a)

        {

            return 0;

        }

        else

        {

            int num=0;

            num=C(a-b,b);

            num++;

            return num ;

        }

    }

}