regex automaton by rotary-o

enum M{M;System z;{String s=new java.util.Scanner(z.in).next();do{z.out.println(s);}while(!s.equals(s=s.replaceAll("\\$'(?=(.*))|\\$`(?<=^(.*)\\$`)","$1$2").substring(0,50)));}}

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

To protect the system from spam, please input your favorite sport (hint: I believe its name must start with 'g', case insensitive)

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