words.put(1, "one");
    words.put(2, "two");
    words.put(3, "three");
    words.put(4, "four");
    words.put(5, "five");
    words.put(6, "six");
    words.put(7, "seven");
    words.put(8, "eight");
    words.put(9, "nine");
    words.put(10, "ten");
    words.put(11, "eleven");
    words.put(12, "twelve");
    words.put(13, "thirteen");
    words.put(14, "fourteen");
    words.put(15, "fifteen");
    words.put(16, "sixteen");
    words.put(17, "seventeen");
    words.put(18, "eighteen");
    words.put(19, "nineteen");
    words.put(20, "twenty");
    words.put(30, "thirty");
    words.put(40, "forty");
    words.put(50, "fifty");
    words.put(60, "sixty");
    words.put(70, "seventy");
    words.put(80, "eighty");
    words.put(90, "ninety");