C++ switch statement on int value

#include <iostream>
using namespace std;
int main()/*w ww. ja  v a  2  s .co m*/
{
   int speed;                        //turntable speed
   cout << "\nEnter 3, 4, or 5: ";
   cin >> speed;                     //user enters speed
   switch(speed)                     //selection based on speed
   {
      case 3:
      cout << "3\n";
      break;
      case 5:
      cout << "5\n";
      break;
      case 4:
      cout << "4\n";
      break;
   }
   return 0;
}