#include <cstdlib>

///////////////////////////////////
// Question/answer utility routine.
unsigned getAnswer(string question, string answers) {
  unsigned i;
  for (;;) {
    cout << question+" ("+answers+") ";
    string ans;
    getline(cin, ans);
	if (ans.size() == 0) continue;
    i= (','+answers).find(","+ans, 0);
	if (i != string::npos) break;
  }// Now pointing at the ','.

  unsigned ansIndex= 0;  
  for (;i>0;) if (answers[--i] == ',') ansIndex++;  // Count the ','s.
  return ansIndex;
}

//////////////////////////////
/// Write out dots for effect.
void dots(unsigned i) {
  system("sleep 1");
  while (0 < i) {
	cout << "." << flush;
	i--;
    system("sleep 1");
  }
}