using System;

public class Program

{

    public static void Main()

    {

        string f = "dana";

        string fm = "banana";

        string name = f+ " "+ fm; 

        Console.WriteLine(name);

        Console.WriteLine(f + " " + fm);

        Console.WriteLine(f + fm);

        int s = 4;

        s++;

        Console.WriteLine(s);

        s--;

        Console.WriteLine(s);

        Console.WriteLine("1.   "+ (s+1));

        Console.WriteLine("2.   "+ s);

        Console.WriteLine("3.   "+  s++);

        Console.WriteLine("4.   "+ s);

        //Console.WriteLine("5.   "+  ++s);

    }

}