public class Hello {
	public static void main(String[] args) {
		String hello = "Hello, World!";
		StringBuffer sb = new StringBuffer();
		java.util.Random rand = new java.util.Random();
		while(!sb.toString().equals(hello)) {
			sb.append((char)rand.nextInt());
			//if(sb.charAt(sb.length() - 1) != 7)
				System.out.println(sb.toString());
			if(sb.charAt(sb.length() - 1) == hello.charAt(sb.length() - 1)) {
				continue;
			} else {
				sb.deleteCharAt(sb.length() - 1);
			}
		}
	}
}