#include <iostream>
using namespace std;

void wr_number(int n);
void wr_bottles(int n);
void wr_tens(int n);
void wr_units(int n);
void wr_Units(int n);

int main()
{
  int n=99;

  while(n > 0){
    wr_number(n);
    wr_bottles(n);
    cout << " of beer on the wall,\n";
    wr_number(n);
    wr_bottles(n);
    cout << " of beer,\n";
    cout << "Take one down, pass it around,\n";
    n--;
    wr_number(n);
    wr_bottles(n);
    cout << " of beer on the wall.\n\n";
  }
  return 0;
}

void wr_bottles(int n){
  if ( n == 1) cout << " bottle";
  else cout << " bottles";
}

void wr_number(int n){
  if (n == 0) cout << "Zero";
  else {if ( n < 20 ) wr_Units(n);
    else {
      int tens = n/10, units = n%10;
      wr_tens(tens);
      if(units != 0) {
	cout << "-";
	wr_units(units);
      }
    }
  }
}

void wr_tens(int n){
  switch(n){
  case 2: cout << "Twenty";break;
  case 3: cout << "Thirty";break;
  case 4: cout << "Forty";break;
  case 5: cout << "Fifty";break;
  case 6: cout << "Sixty";break;
  case 7: cout << "Seventy";break;
  case 8: cout << "Eighty";break;
  case 9: cout << "Ninety";break;
  default: cerr << "Bad tens!!\n";exit(1);
  }
}

void wr_units(int n){
  switch(n){
  case 1: cout << "one";break;
  case 2: cout << "two";break;
  case 3: cout << "three";break;
  case 4: cout << "four";break;
  case 5: cout << "five";break;
  case 6: cout << "six";break;
  case 7: cout << "seven";break;
  case 8: cout << "eight";break;
  case 9: cout << "nine";break;
  default: cerr << "Bad units!!\n";exit(1);
  }
}

void wr_Units(int n){
  switch(n){
  case 1: cout << "One";break;
  case 2: cout << "Two";break;
  case 3: cout << "Three";break;
  case 4: cout << "Four";break;
  case 5: cout << "Five";break;
  case 6: cout << "Six";break;
  case 7: cout << "Seven";break;
  case 8: cout << "Eight";break;
  case 9: cout << "Nine";break;
  case 10: cout << "Ten";break;
  case 11: cout << "Eleven";break;
  case 12: cout << "Twelve";break;
  case 13: cout << "Thirteen";break;
  case 14: cout << "Fourteen";break;
  case 15: cout << "Fifteen";break;
  case 16: cout << "Sixteen";break;
  case 17: cout << "Seventeen";break;
  case 18: cout << "Eighteen";break;
  case 19: cout << "Nineteen";break;
  default: cerr << "Bad Units!!\n"; exit(1);
  }
}