protected function execute(InputInterface $input, OutputInterface $output)
{
$ellipsoid = Ellipsoid::createFromName($input->getOption('ellipsoid'));
$coordinate = new Coordinate($input->getArgument('coordinate'), $ellipsoid);
$geotools = new Geotools();
$output->writeln(sprintf('<value>%s</value>', $geotools->convert($coordinate)->toUTM()));
}