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import java.io.*;
import antlr.DumpASTVisitor;
class Main {
public static void main(String[] args) {
try {
LangLexer lexer = new LangLexer(new DataInputStream(System.in));
LangParser parser = new LangParser(lexer);
parser.block();
antlr.CommonAST a = (antlr.CommonAST)parser.getAST();
System.out.println(a.toStringList());
LangWalker walker = new LangWalker();
walker.block(a); // walk tree
System.out.println("done walking");
} catch(Exception e) {
System.err.println("exception: "+e);
}
}
}
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