On the Subject of Alphabet Numbers

...one, two, three, four... hang on... four, three, two... no... four, one, two...

• The module consists of six labelled buttons.
• Each label refers to a position in one of the below tables, depending on which stage you are at.
• The tables should be read in reading order.
• Press the buttons in alphabetical order of the numbers in the table.
• Pass all four stages to disarm the module.
• Entering an incorrect sequence will cause a strike. The strike will not occur until a full sequence of six has been entered.

Stage One
8	18	28	38	48	58	68	78	80	81	82
83	84	85	86	87	88	89	800	808	818	888

Stage Two
6	7	16	17	60	66	67	70	76	77	600	606	607	660
666	667	670	676	677	700	706	707	760	766	767	770	776	777

Stage Three
4	5	14	15	40	44	45	50	54	55	400	404	405	440
444	445	450	454	455	500	504	505	540	544	545	550	554	555

Stage Four
2	3	10	12	13	20	22	23	30	32	33
200	202	203	220	222	223	230	232	233	300	302
303	320	322	323	330	332	333	1,000	10,000	1,000,000,000,000

• Note: 1,000 is "thousand" and 1,000,000,000,000 is "trillion".