private String get_alphabet_morse(int cnt)
	{
		StringBuilder sb=new StringBuilder();
		int first_line=cnt/9;
		switch(first_line)
		{
		case 0:
			sb.append(".");
			break;
		case 1:
			sb.append("-");
			break;
		case 2:
			sb.append("x");
			break;
		}
		int second_line=cnt%9;
		if(second_line>=0 && second_line<=2)
		{
			sb.append(".");
		}
		else if(second_line>=3 && second_line<=5)
		{
            sb.append("-");			
		}
		else
		{
			sb.append("x");
		}
		int third_line=cnt%3;
		if(third_line==0)
		{
			sb.append(".");
		}
		else if (third_line==1)
		{
			sb.append("-");
		}
		else
		{
			sb.append("x");
		}
		return sb.toString();
	}