using System;

public class Program

{

    public static void Main()

    {

odometer("0","0");

    }

public static void odometer (string a , string b ){

if ( a == "9" && b == "9")

{

 Console.WriteLine("reset ");

}

else { 

b  = convert(b);

if ( b == "9")

{

a = convert(a);

}

Console.WriteLine(a + b );

odometer(a,b);

}

}

​

public static string convert(string x )

{

if ( x == "0")

{

x  = "1";

}

if ( x == "1")

{

x = "2";

}

if( x == "2")

{

x = "3";

}

if( x == "3")

{

x = "4";

}

if( x == "4")

{

x = "5";

}

if( x == "5")

{

x =  "6";

}

if( x == "6")

{

x =  "7";

}

if( x == "7")

{

x =  "8";

}

if( x == "8")

{

x =  "9";

}

if( x == "9")

{

x =  "0";

}

return x;

}

}

​