IN: scratchpad [ \ dup \ * \ + "unused" ] steps-infer dup [ pop ] [ pop ] bi . . length 26 - abs . "(+ \"b\" \"(* \"a\" \"a\")\")" "unused" 2 IN: scratchpad [ \ dup \ * \ + ] steps-infer dup pop . length 26 - abs . "(+ \"b\" \"(* \"a\" \"a\")\")" 2