The PPAASS arrangement was originally given as "The order of protein amino acids based on chemical similarity" (PAAS) ); but we have renamed it here in response to Rosemarie Swanson's appeal that "using the idealized models, one could construct a 'perfect' genetic code and even choose a different set of amino acids to give a still more even distribution of their physical properties" . Namely, we want to show that the real system of 20 existing protein AAs is actually the desired Perfect system and that there is no need to add new AAs. In addition, additional 2 AAs (selenocysteine and pyrrolysine) that can be incorporated by special translation mechanisms, we will consider as a change within the degree of freedom, which freedom applies to all exceptions to the standard GC, to all deviant Genetic codes .