     IO.puts("  symmetric_difference -t : red:yellow:green red:green:blue")
     IO.puts("  symmetric_difference -s '1, 3, 5, 7, 9' '2, 3, 5, 7'")
     IO.puts("  symmetric_difference -s '1, 2, 3, 5, 8' '1, 4, 9' '2, 4, 8' '1, 3, 5, 7, 9' '2, 3, 5, 7'")
+    IO.puts("  symmetric_difference -s -o '1, 2, 3, 5, 8' '1, 4, 9' '2, 4, 8' '1, 3, 5, 7, 9' '2, 3, 5, 7'")
     IO.puts("  symmetric_difference -b")
     IO.puts("  symmetric_difference -b -x 5000000 -c 100")
   end

      token: ",",
      character: false,
      strip: false,
      benchmark: false,
      max: 1000000,
      count: 12,

      t: :token,
      c: :character,
      s: :strip,
      o: :original,
      b: :benchmark,
      x: :max,
      n: :count,
