The following text was written to the standard output stream when the ? program was executed from IntelliJ.
(C,1) / (D,1) / (E,1) \ (C,1) (C,1) / (D,1) / (E,1) \ (C,1) / (E,1) / (F,1) / (G,1) (G,2) \ (E,1) / (F,1) / (G,2)