#include <iostream>
#include <stdlib.h>
#include <fstream>
#include <string>

using namespace std;

int main()
{
  string x;
   getline (cin,x);

do{
   if (x=="help")
   {
  string line;
  ifstream myfile ("help.txt"); //Reads the text from a help file
  if (myfile.is_open())
  {
    while (! myfile.eof() )
    {
      getline (myfile,line);
      cout << line << endl;
    }
    myfile.close();
  }
  break;
  
}
   if (x=="cls") //The CLS command, it seems to work fine...
   {      system("CLS");
      break;
   }
   if (x=="ver") //This is the VER command, it displays the version of my program!
   {
                 cout << "Pan O.S. Version 1.0 April 2006 ALL RIGHTS RESERVED\n";
                 }
   break;
}
while (x!="exit"); //done with EXIT command

  cin.get();
  return 0;
}