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/*count.c*/

void putchar(int value);

int puts(const char *string);

char *name[] = {

   "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",

   "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen",

   "sixteen", "seventeen", "eighteen", "nineteen",

   "", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy",

   "eighty", "ninety"

};

char *xtoa(unsigned long num)

{

   static char buf[12];

   int i, digit;

   buf[8] = 0;

   for (i = 7; i >= 0; --i)

   {

      digit = num & 0xf;

      buf[i] = digit + (digit < 10 ? '0' : 'A' - 10);

      num >>= 4;

   }

   return buf;

}

char *itoa10(unsigned long num)

{

   static char buf[12];

   int i;

   buf[10] = 0;

   for (i = 9; i >= 0; --i)

   {

      buf[i] = (char)((num % 10) + '0');

      num /= 10;

   }

   return buf;

}

void number_text(unsigned long number)

{

   int digit;

   puts(itoa10(number));

   puts(": ");

   if(number >= 1000000000)

   {

      digit = number / 1000000000;

      puts(name[digit]);

      puts(" billion ");

      number %= 1000000000;

   }

   if(number >= 100000000)

   {

      digit = number / 100000000;

      puts(name[digit]);

      puts(" hundred ");

      number %= 100000000;

      if(number < 1000000)

      {

         puts("million ");

      }

   }

   if(number >= 20000000)

   {

      digit = number / 10000000;

      puts(name[digit + 20]);

      putchar(' ');

      number %= 10000000;

      if(number < 1000000)

      {

         puts("million ");

      }

   }

   if(number >= 1000000)

   {

      digit = number / 1000000;

      puts(name[digit]);

      puts(" million ");

      number %= 1000000;

   }

   if(number >= 100000)

   {

      digit = number / 100000;

      puts(name[digit]);

      puts(" hundred ");

      number %= 100000;

      if(number < 1000)

      {

         puts("thousand ");

      }

   }

   if(number >= 20000)

   {

      digit = number / 10000;

      puts(name[digit + 20]);

      putchar(' ');

      number %= 10000;

      if(number < 1000)

      {

         puts("thousand ");

      }

   }

   if(number >= 1000)

   {

      digit = number / 1000;

      puts(name[digit]);

      puts(" thousand ");

      number %= 1000;

   }

   if(number >= 100)

   {

      digit = number / 100;

      puts(name[digit]);

      puts(" hundred ");

      number %= 100;

   }

   if(number >= 20)

   {

      digit = number / 10;

      puts(name[digit + 20]);

      putchar(' ');

      number %= 10;

   }

   puts(name[number]);

   putchar ('\r');

   putchar ('\n');

}

int main()

{

   unsigned long number, i=0;

   number = 3;

   for(i = 0;; ++i)

   {

      number_text(number);

      number *= 3;

      //++number;

   }

}