public static function getStateName($ddd)
 {
     self::validate(parent::getArrayDDDofUF(), $ddd);
     $stateName = parent::getArrayUFofStateName()[parent::getArrayDDDofUF()[$ddd]];
     return $stateName;
 }
 public static function getUF($ddd)
 {
     self::validate(parent::getArrayDDDofUF(), $ddd);
     return parent::getArrayDDDofUF()[$ddd];
 }
 public static function isValid($ddd)
 {
     return self::validate(parent::getArrayDDDofUF(), $ddd);
 }
 public static function getArrayDDDandStateName($ddd)
 {
     self::validate(parent::getArrayDDDofUF(), $ddd);
     return ['UF' => parent::getArrayDDDofUF()[$ddd], 'StateName' => parent::getArrayUFofStateName()[parent::getArrayDDDofUF()[$ddd]]];
 }