public static void main(String[] args) {
		// TODO Auto-generated method stub
		LetterCombinationsofaPhoneNumber sample = new LetterCombinationsofaPhoneNumber();
		String string = "2";
		sample.letterCombinations(string);
	//	System.out.println("hee");
		for (String s : sample.result)
			System.out.println(s);
	//	System.out.println("hee");

	}