Route error when the value is greater than 9

I'm on my phone commuting so I'm just guessing: I think the route function should be defined as Members::aaa/$1/$2 so you pass the (:num) segments as two arguments properly.

This is function in Controller:

Code:

public function aaa($slug = '')
{
    /* I will get slug = (:any).(:num)
}

I'll get value (:any).(:num).