import java.text.DecimalFormat;

EnglishNumberToWords ntw = new EnglishNumberToWords();

void setup(){
size(300,300);
}
int i = 0;

void draw(){
 
  if(frameCount%10==0){
println(ntw.convert(i));
    i++;
  }
}




 class EnglishNumberToWords {

  String[] tensNames = {
    "",
    " ten",
    " twenty",
    " thirty",
    " forty",
    " fifty",
    " sixty",
    " seventy",
    " eighty",
    " ninety"
  };

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

   String convertLessThanOneThousand(int number) {
    String soFar;

    if (number % 100 < 20){
	soFar = numNames[number % 100];
	number /= 100;
    }
    else {
	soFar = numNames[number % 10];
	number /= 10;

	soFar = tensNames[number % 10] + soFar;
	number /= 10;
    }
    if (number == 0) return soFar;
    return numNames[number] + " hundred" + soFar;
  }


  String convert(long number) {
    // 0 to 999 999 999 999
    if (number == 0) { return "zero"; }

    String snumber = Long.toString(number);

    // pad with "0"
    String mask = "000000000000";
    DecimalFormat df = new DecimalFormat(mask);
    snumber = df.format(number);

    // XXXnnnnnnnnn 
    int billions = Integer.parseInt(snumber.substring(0,3));
    // nnnXXXnnnnnn
    int millions  = Integer.parseInt(snumber.substring(3,6)); 
    // nnnnnnXXXnnn
    int hundredThousands = Integer.parseInt(snumber.substring(6,9)); 
    // nnnnnnnnnXXX
    int thousands = Integer.parseInt(snumber.substring(9,12));    

    String tradBillions;
    switch (billions) {
    case 0:
	tradBillions = "";
	break;
    case 1 :
	tradBillions = convertLessThanOneThousand(billions) 
	+ " billion ";
	break;
    default :
	tradBillions = convertLessThanOneThousand(billions) 
	+ " billion ";
    }
    String result =  tradBillions;

    String tradMillions;
    switch (millions) {
    case 0:
	tradMillions = "";
	break;
    case 1 :
	tradMillions = convertLessThanOneThousand(millions) 
	+ " million ";
	break;
    default :
	tradMillions = convertLessThanOneThousand(millions) 
	+ " million ";
    }
    result =  result + tradMillions;

    String tradHundredThousands;
    switch (hundredThousands) {
    case 0:
	tradHundredThousands = "";
	break;
    case 1 :
	tradHundredThousands = "one thousand ";
	break;
    default :
	tradHundredThousands = convertLessThanOneThousand(hundredThousands) 
	+ " thousand ";
    }
    result =  result + tradHundredThousands;

    String tradThousand;
    tradThousand = convertLessThanOneThousand(thousands);
    result =  result + tradThousand;

    // remove extra spaces!
    return result.replaceAll("^\\s+", "").replaceAll("\\b\\s{2,}\\b", " ");
  }

}