ref: d7119f0738610ffe0ba1bad231327b6e0a79837b 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