static int getNumber(char l) {
		l = Character.toUpperCase(l);
		if(l<='C')
			return 2;
		else if(l<='F')
			return 3;
		else if(l<='I')
			return 4;
		else if(l<='L')
			return 5;
		else if(l<='O')
			return 6;
		else if(l<='S')
			return 7;
		else if(l<='V')
			return 8;
		return 9;
	}