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newline " " fibo bool.if(int.smaller($1, 0), 0, bool.if(int.equal($1, 0), 1, int.add( fibo(int.sub($1, 1)), fibo(int.sub($1, 2)) ))) print bool.if(int.smaller($1, 0), "", str.cat( print(int.sub($1, 1)), fibo($1), newline ))