Shortening codes (SPOJ)

ID	NAME	CODE	USERS	ACC %
26387	Warmup	REGEX001	50	91.03
26399	Anchors	REGEX002	39	93.88
26400	Ranges	REGEX003	33	97.67
26401	Backrefs	REGEX004	26	100.00
26402	Abba	REGEX005	20	84.78
26403	A man, a plan	REGEX006	15	89.29
26404	Prime	REGEX007	9	100.00
26405	Four	REGEX008	11	95.65
26406	Order	REGEX009	8	100.00
26407	Triples	REGEX010	3	80.95
26408	Glob	REGEX011	5	95.65
26409	Balance	REGEX012	4	100.00
26410	Powers	REGEX013	6	100.00
26411	Long count	REGEX014	6	100.00
26426	Alphabetical	REGEX015	4	100.00
26427	Powers 2	REGEX016	4	90.91
26428	Subtraction	REGEX017	1	100.00
26429	Typist	REGEX018	0	0.00
26430	Addition	REGEX019	1	100.00
26431	Anyway	REGEX020	0	0.00
26432	Tic-tac-toe	REGEX021	1	100.00
26433	Modulus	REGEX022	0	0.00
26434	Matryoshka	REGEX023	0	0.00
26435	Euclid	REGEX024	0	0.00
26436	Latin squares	REGEX025	0	0.00
26437	Dominoes	REGEX026	0	0.00