public static function get()
{
self::$counter--;
if (!self::$cache || !self::$counter) {
self::$counter = self::getCount();
self::$cache = self::getCache();
if (!isset(self::$sum[self::$cache])) {
self::$sum[self::$cache] = 0;
}
}
self::$sum[self::$cache]++;
return self::$cache;
}