using System;

public class Program

{

    public static void Main()

    {

         int a , b , c ;

         //-------------------------------

         a=int.Parse(Console.ReadLine());

         b=int.Parse(Console.ReadLine());

         //-------------------------------

         Console.WriteLine("--------------- ");

         Console.WriteLine("a is : {0}",a);

         Console.WriteLine("b is : {0}",b);     

         //--------------------------------

         c=a;

         a=b;

         b=c;

         //---------------------------------

         Console.WriteLine("--------------- ");

         Console.WriteLine("a is : {0}",a);

         Console.WriteLine("b is : {0}",b); 

    }

}