using System;
using System.IO;

namespace Cat
{
   class Program
   {
      static void Main( string[] args )
      {
         Stream stdin = Console.OpenStandardInput();
         Stream stdout = Console.OpenStandardOutput();
         byte[] buffer = new byte[ 4096 ];
         while( 0 != stdin.Read( buffer, 0, 1 ) )
            stdout.Write( buffer, 0, 1 );
      }
   }
}