using System;

public class Program

{

    public static void Main()

    {

        string Israel, Mullisaca, tercero, itdb, elalto;

        Console.WriteLine("PROGRAMACION, ISRAEL MULLISACA  FABIO, CADENAS");

        Console.WriteLine("Ingrese primera cadena");

        Israel=Console.ReadLine();

        Console.WriteLine("Ingrese Segunda Cadena");

        Mullisaca=Console.ReadLine();

        Console.WriteLine("Ingrese tercera Cadena");

        tercero=Console.ReadLine();

        Console.WriteLine("Ingrese cuarta Cadena ");

        itdb=Console.ReadLine();

        Console.WriteLine("Ingrese quinta Cadena");

        elalto=Console.ReadLine();

        Console.WriteLine(Israel[0]+","+Mullisaca[0]+","+tercero[0]+","+itdb[0]+","+elalto[0]);

    }

}