Răspuns :
105,114,123,132,141,150,204,213,222,231,240,303,312,321,402,411,420,501,510,600.
600,510,420,402,312,240,222,204,150,132,114 => nr. pare in ordine descrescatoare
600,510,420,402,312,240,222,204,150,132,114 => nr. pare in ordine descrescatoare