#include "library.h"

string small[] = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight",
   "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen",
   "seventeen", "eighteen", "nineteen" };

string ty[] = { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy",
   "eighty", "ninety" };

void say_number(const int N)
{ if (N < 20)
    print(small[N]);
  else if (N < 100)
  { const int first = N / 10;
    const int second = N % 10;
    print(ty[first]);
    if (second != 0)
    { print("-");
      say_number(second); } }
  else
  { print("I can't say ");
    print(N);
    print(" yet\n"); } }

void main()
{ print("Type a number: ");
  const int number = read_int();
  say_number(number);
  new_line(); }