public class Sign {
	
	private String message;
	private int width;

	public Sign(String message, int width)
	{
		this.message= message;
		this.width= width;
	}
	
	public int numberOfLines()
	{
		int lines=1;
		String newMsg = message;
		
		if (message.isEmpty()) return 0;
		else
		{
			while (newMsg.length() > width)
			{
				newMsg = newMsg.substring(width);
				lines++;
			}
		}
		return lines;
	}
	
	public String getLines()
	{
		String lines=null;
		String newMsg = message;
		
		if (message.isEmpty()) return "null";
		else
		{
			while (newMsg.length() > width)
			{
				if (lines!=null) lines = lines+ newMsg.substring(0,width)+";";
				else lines =  newMsg.substring(0,width)+";";
				newMsg = newMsg.substring(width);
			}
			if (lines!=null)  lines = lines+ newMsg.substring(0);
			else lines = newMsg.substring(0);
		}
		return lines;
	}
}