Shortening codes (SPOJ)

ID	NAME	CODE	USERS	ACC %
26387	Warmup	REGEX001	293	97.48
26399	Anchors	REGEX002	262	99.40
26400	Ranges	REGEX003	246	99.67
26401	Backrefs	REGEX004	228	99.34
26402	Abba	REGEX005	183	96.02
26403	A man, a plan	REGEX006	123	47.56
26404	Prime	REGEX007	143	97.80
26405	Four	REGEX008	158	97.85
26406	Order	REGEX009	145	98.85
26407	Triples	REGEX010	112	93.90
26408	Glob	REGEX011	107	93.29
26409	Balance	REGEX012	102	96.90
26410	Powers	REGEX013	116	98.10
26411	Long count	REGEX014	115	100.00
26426	Alphabetical	REGEX015	82	93.46
26427	Powers 2	REGEX016	99	83.33
26428	Subtraction	REGEX017	86	98.06
26429	Typist	REGEX018	85	100.00
26430	Addition	REGEX019	74	96.84
26431	Anyway	REGEX020	0	0.00
26432	Tic-tac-toe	REGEX021	65	97.40
26433	Modulus	REGEX022	29	94.59
26434	Matryoshka	REGEX023	34	100.00
26435	Euclid	REGEX024	20	100.00
26436	Latin squares	REGEX025	19	90.91
26437	Dominoes	REGEX026	20	100.00