ref: df19b6dc50e821ae5f7ff96961d866bcff61839e dir: /examples/accept.ref/
A 3 B 3 C 3 ABC 3 B 3 C 3 D 3 BCD 3 A 3 B 3 C 3 ABC 3 B 3 C 3 D 3 BCD 3 A 3 B 3 C 3 ABC 3 B 3 C 3 D 3 BCD 3 A 3 B 3 C 3 ABC 3 B 3 C 3 D 3 BCD 3