Even vs Odd Routes with different names?

gistfile1.php

/**
 * Only accept even arguments in the URL
 */
$app->route('even', new Regex('#^/number/(?P<number>[0-9]+)/?$#'), function(){
	echo "The number was even.";
})->validate(function($request) { return $request['number'] % 2 == 0;});

/**
 * Only accept odd arguments in the URL
 */
$app->route('odd', new Regex('#^/number/(?P<number>[0-9]+)/?$#'), function(){
	echo "The number was odd.";
})->validate(function($request) { return $request['number'] % 2 == 1;});