using System;
using System.Text;

class ShowKeys{
 public static void Main(){

  ConsoleKeyInfo cki;
  StringBuilder sb = new StringBuilder();

  Console.TreatControlCAsInput = true;

  for(;;){
   sb.Length = 0;
   cki = Console.ReadKey(true);
   if(cki.Modifiers != 0){
    if((cki.Modifiers & ConsoleModifiers.Alt) != 0) sb.Append("ALT+");
    if((cki.Modifiers & ConsoleModifiers.Shift) != 0) sb.Append("SHIFT+");
    if((cki.Modifiers & ConsoleModifiers.Control) != 0) sb.Append("CONTROL+");
   }
   sb.Append(cki.Key.ToString());
   sb.Append(' ');
   sb.Append(cki.KeyChar);
   Console.WriteLine(sb.ToString());
  }
 }
}