Question 18
AI reconstruction: Language: uppercase English A–Z, digits 0–9; punctuation hash (#), equals (=), slash (/), dollar sign and cent sign (¢). Rules: (1) end with /; (2) start with the next English letter after the preceding printed series; (3) the second of two adjacent uppercase letters may be replaced by a digit; (4) 5 may not be adjacent to another 5; (5) every other digit may occur at most once. Model: A1AA#2/. Enter C if correct or I if incorrect. The preceding printed series starts with A. Check the series shown below. Added condition: Treat these as the complete checks: digits may occupy the displayed positions; rule 3 permits replacement but does not impose an additional fixed-position template. Punctuation may repeat, with no length limit stated.
